Tag Archives: helical gear

China supplier Auto Spare Part OEM Rear Axle Drive Transmission Gear Pinion crossed helical gearbox

Product Description

Product Parameters

PRODUCT NAME: Rear Axle Drive Pinion and Gear

NO.	APPLICABLE VEHICLE	GEAR RATIO	PART NO.	REFERENCE WEIGHT(KG)
1	MITSUBISHI 4D30	6/37	MB005252	12.4
2	MITSUBISHI 4D41	7/37	MB161193
3	MITSUBISHI 4D32	6/37
4	MITSUBISHI 4D34	6/37	MC835191	14
5	MITSUBISHI L300F	7/37	MB57164	4.18
6	MITSUBISHI L300P	7/37	MB185457	4
7	MITSUBISHI L300D	7/37	MB241981	6.3
8	MITSUBISHI 8DC9	6/40
9	MITSUBISHI 6D22	6/45		34.50
10	MITSUBISHI 6D15	6/40		29
11	TOYOTA 14B	6/39	41201-37499	11.4
12	TOYOTA 2400	9/41		5
13	TOYOTA CZPT HT	7/45		18.8
14	TOYOTA LAND CRUISER	9/37		7
15	TOYOTA COASTER	7/39		8.60
16	isu TXD40	6/39	41211-080	19.50
17	isu TXD50	7/39	41211-081	19
18	isu BF-40	6/39	41210-149	20
19	isu NKR	6/41		16
20	isu NPR	7/41		10.20
21	isu 10PC1	6/41		34.50
22	HINO	7/46	41201-1080	24.40
23	HINO KR	7/46		24.50
24	HINO AKBUS/FF	7/43		24.50
25	HINO J08C	7/45		35.00
26	BEDFORD J6-330	6/35	7078107	14.40
27	BEDFORD J5-330	5/34	7167277	15.50
28	BEDFORD	6/35	7167278	14.80
29	BEDFORD	7/37	7165710	14.50
30	BEDFORD	6/35	9157101	21.50
31	BEDFORD	6/35	716571	14.20
32	U.S.A TRACTOR P7102	7/43
33	U.S.A TRACTOR P7112	7/47
34	FORD 6600 C5NN-4610E	7/37	1839118/127	13.50
35	FORD 5000 DONN-4610B	6/37	3571152/136	14.20
36	TRACTOR MF-240	6/37		15.20
37	TRACTOR MF-135	6/37		14.60
38	TRACTOR MF-265	11/38
39	FAIT	12/47		7.40
40	FAIT	14/47		7.60
41	MAZDA/W015	7/46		9.70
42	SUZUKI ST90	7/36		2.20
43	SUZUKI GAZ	8/41		7.60

Features

1.Competitive and reasonable price
2.Long lasting and reliable working life time
3.Premium quality standard guaranteed
4.Standard packing or according customers’ specification required.
5.Short production cycle
6.Quickly delivery and wide varieties
7.Large stock,quick shipment
8.Short production cycle,large stock,quick shipment
9.Able to produce according customers’ specification with technical drawing and sample.
10. Material: carbon steel such as C45, 20CrMnTi, 40Cr, 42CrMo or stainless steel or copper or nylon etc.

Our Advantages

ADVANCED EQUIPMENT

America Gleason CZPT Bevel Gear Cutting Machine
America A Group of Gleason
Germany Ipsen Gas-tight Multi-purpose Chamber Furnace
Germany Zeiss Three-coordinate Measuring Machine
America Gleason Bevel Gear Cutting Machine
America Gleason Bevel Gear Lapping Machine
America Gleason Bevel Gear Roll Testing Machine

We can supply more than 2 hundred type of Spiral Taper Gear and pinion which are sold well in both domestic and abroad markets for automobile,tractor,engineering and construction machinery, coal mine machinery,chemical and petroleum machinery.

1.Supply for OEM
2.High quality and reasonable price
3.Material 20Cr MnTi
4.We have quality control system to guarantee best product quality
5.We have professional inspectors.All these inspectors are qualified.

Certifications

After-sales Service:	12 Months
Warranty:	12 Months
Type:	Diesel&Gasoline
Material:	Steel
Certification:	ISO, GB
Automatic:	Automatic

Samples:	US$ 50/Piece 1 Piece(Min.Order) \| Request Sample

Customization:	Available \| Customized Request

helical gearbox

Advantages of a Helical Gearbox

Usually helical gearboxes are used for industrial purposes. They are usually found in power generation units, where the input of energy is converted into output. There are several different types of helical gearboxes, including spiral and herringbone. You should familiarize yourself with the different types before choosing one for your project.

Helix angle

Generally, the angle between a gear tooth and its shaft axis is called the helix angle. This angle is important in motion conversion and power transfer. It is not to be confused with the lead angle, which is used to reference a line perpendicular to the axis of the gear.
The helical gearbox is used in several industrial applications. The oil and sugar industries, blowers, and feeders are among those that utilize helical gears. They are smoother than spur gears, and they also have quieter operation.
Helical gearboxes can be made modularly. This allows for more economical construction and interchangeability of components. These gearboxes are also used in enclosed gear systems. In a helical gearbox, each section of the box must stagger in a different direction. This helps in maintaining the integrity of the component.
Helical gears can be used in applications that require a high degree of quality control. This is necessary to minimize the effects of wear and tear. The use of extreme pressure lubricants is recommended for helical gears that operate at right angles. However, these are not recommended for bronze gears.
Besides the helix angle, the contact ratio also affects the performance of the gear. The more surface contact between the teeth, the greater the sliding. The heat produced is also detrimental to performance. It is necessary to use a lubricant that will reduce friction between the tooth surfaces. Proper lubrication reduces wear and minimizes heat.
When determining the optimum helix angle for a gear, it is important to consider the diameter of the gear. Helical gears have a minimum helix angle of 15 to 30 degrees. A higher helix angle increases the axial force generated by the gear, and a lower helix angle increases the contact stress.

Spiral gears

Using spiral gears in a helical gearbox offers several advantages, including smoothness and quiet operation. In addition, helical gearboxes are highly effective and can tolerate more load. Spiral gears are also more cost effective. However, they are more difficult to produce.
Helical gears are similar to spur gears in that they have teeth at an angle. However, the helix angle of the teeth in a helical gear is not fixed. This angle affects the position of the tooth’s contact with the mating gear. It also affects the normal force of the teeth.
The helix angle of the gear’s teeth is also dependent on the direction of rotation of the gear. For example, a spiral gear with a helix angle of 15 degrees is usually perpendicular to the axis of the gear. Similarly, a helical gear with a helix angle of 30 degrees is usually oblique to the axis of the gear.
Helical gears also provide a method for connecting shafts that are not parallel. These gears are usually used in industries such as conveyors, food industries, plastic industries, and oil industries. The main advantage of helical gears is that they are smoother than spur gears. However, the downside is higher wear and friction.
Helical gears are also used to transmit motion between parallel shafts. Helical gears are also used in high-load applications. This makes them a good choice for heavy-duty applications.
Helical gears are also superior to spur gears in load carrying capacity. Helical gears are smoother and quieter than spur gears. However, they also have a higher friction factor. In addition, they require special hobbing cutters.
Helical gears can also be classified according to their reference section in the standard plane. The center gap of helical gears with a reference section in the turning plane is the same as that of spur gears. helical gearbox

Herringbone gears

Among the different types of gearboxes, the helical gearbox is one of the most common. It is widely used in industrial applications, such as geared motors, worm gearboxes, and planetary gear trains.
A helical gear is a directional gear with a vertical axis. Its unique feature is the helix angle, which is the angle of the helix on the indexing cylindrical surface. The helix angle is set to a value of eight to fifteen degrees in design. The real radial pitch, which is the pitch of the gear when it rotates clockwise, varies with the helix angle.
Helical gears are classified according to the reference section in the turning and standard planes. Helical gears with a reference section in the standard plane have the same number of teeth as spur gears. On the other hand, helical gears with a reference section in a turning plane have the same center gap as spur gears.
The main advantage of helical gears is the high power-to-weight ratio. Aside from that, they are compact and have good meshing performance.
Another advantage is their high torque carrying capacity. This can be achieved by increasing the helix angle. The larger the helix angle, the smoother the gear’s motion. Moreover, the larger the helix angle, the larger the coincidence degree. This is useful in applications with high shock and vibration.
The production process for herringbone gears is more difficult and expensive than the other types. It is difficult to cut and shape herringbone gears. A simple gear hobbing machine is not suitable for this type of gear. However, the milling process can be used to process some herringbone gears.
Some of the problems related to herringbone gears are a lack of axial load, high friction and the interference of axial component forces. The meshing of teeth in herringbone gears can help reduce these problems.

Noise, vibration & harshness (NVH) characteristics

NVH testing is an important aspect of new driveline product development. It is typically performed during passenger car development, and is used for quality assurance of exterior and interior noise. This is an important topic in hybrid vehicles and electric vehicles, and continues to grow as the automotive industry expands.
A typical NVH test involves a rolling road dynamometer and signals are recorded and stored on a hard disk. These are then processed to produce variation distributions. Among other things, a lumped parameter system dynamics model was developed to run large size DOE studies efficiently.
Among the many components in the NVH chain, the bevel gear plays a major role in the final drive. Its characteristics are complex and time-varying, but they are important enough to be studied.
A new bevel gear OTE calculation method will be discussed in this paper. It is important to note that the NVH performance of an electric drive helical gear transmission system can be improved by thermal deformation of the bearing. It is also possible to achieve robust NVH performance in aluminum axle design by optimizing gear design, bearing optimization, and driveline system dynamics.
The gear train also has some lesser-known NVH performance characteristics. It is known that a gear train is an excitation source, and this is the topic of another study. It is also important to note that a helical gear system will exhibit non-linear behaviors when it changes working speed. helical gearbox

Applications

Compared to spur gears, helical gears offer greater load carrying capacity and smoother operation. They are also quieter, as the gears have larger teeth. These are the main reasons for their widespread use.
The main difference between helical gears and spur gears is the way teeth are cut. Teeth in helical gears are cut at an angle, in order to allow more teeth to interact in the same direction. This reduces shock loads and vibration. Helical gears are also much more durable than spur gears.
Helical gears can be used in a variety of applications. They are often chosen over spur gears for applications that require non-parallel shafts. They are also popular in the printing industry, the plastics industry, and the cement industry. They can also be used in conveyors and coolers.
Helical gears are made of a material that provides excellent durability, corrosion resistance, and a strong working load. They are also less expensive to produce. They are attached to a shaft using a press fit or adhesive. The attachment method can be a hub or an integral shaft.
Helical gears are also produced in a radial module form. This is the most economical option. This allows helical gears to be manufactured in a compact format. It also ensures that the bearing positioning requirements are met.
Helical gears are also produced with special grinding stones. These are needed for every helix angle. The helix angle determines the real radial pitch. This also affects the normal force of the tooth.
When mating helical gears to parallel shafts, they are right-handed. These gears can be made with a normal module set or by using special hobbing tools.
China supplier Auto Spare Part OEM Rear Axle Drive Transmission Gear Pinion crossed helical gearbox
editor by CX 2023-11-15

China Professional Small Gear Reducer R87 Series Helical Gear Hard Face Reducer Hard Face Gear Reducer bevel helical gearbox application

Product Description

Boqiang Drive K Series Helical -Bevel Geared Motor

Features:
-High efficiency: 92%-97%;
-Compact structure: Small offset output, two stage and three stage are in the same box.
-High precision: the gear is made of high-quality alloy steel forging, carbonitriding and hardening treatment, grinding process to ensure high precision and stable running.
-High interchangeability: highly modular, serial design, strong versatility and interchangeability.

Technical parameters

Ratio	3.41-289.74
Input power	0.12-160KW
Output torque	61-23200N.m
Output speed	5-415rpm
Mounting type	Foot mounted, flange mounted, foot and flange mounted, single-stage foot mounted, CZPT flange mounted, Flange-mounted with extended bearing hub
Input Method	Flange input(AM), shaft input(AD), inline AC motor input, or AQA servo motor
Brake Release	HF-manual release(lock in the brake release position), HR-manual release(autom-atic braking position)
Thermistor	TF(Thermistor protection PTC thermisto) TH(Thermistor protection Bimetal swotch)
Mounting Position	M1, M2, M3, M4, M5, M6
Type	R17-R167
Output shaft dis.	20mm, 25mm, 30mm, 35mm, 40mm, 50mm, 60mm, 70mm, 90mm, 110mm, 120mm
Housing material	HT200 high-strength cast iron from R37,47,57,67,77,87
Housing material	HT250 High strength cast iron from R97 107,137,147,157,167,187
Heat treatment technology	carbonitriding and hardening treatment
Efficiency	92%-97%
Lubricant	VG220
Protection Class	IP55, F class

Product Parameters

Models	Output Shaft Dia.	Input Shaft Dia.	Power(kW)	Ratio	Max. Torque(Nm)
R/RF18	20mm	–	0.18~0.75	3.83~74.84	85
R/RF28	25mm	16mm	0.18~3	3.37~135.09	130
R/RF38	25mm	16mm	0.18~3	3.41~134.82	200
R/RF48	30mm	19mm	0.18~5.5	3.83~176.88	300
R/RF58	35mm	19mm	0.18~7.5	4.39~186.89	450
R/RF68	35mm	19mm	0.18~7.5	4.29~199.81	600
R/RF78	40mm	24mm	0.18~11	5.21~195.24	820
R/RF88	50mm	28mm	0.55~22	5.36~246.54	1550
R/RF98	60mm	38mm	0.55~30	4.49~289.6	3000
R/RF108	70mm	42mm	2.2~45	5.06~245.5	4300
R/RF138	90mm	55mm	5.5~55	5.51~223.34	8000
R/RF148	110mm	55mm	11~90	5.00~163.46	13000
R/RF168	120mm	70mm	11~160	8.77~196.41	18000

1 Stage

Models	Output Shaft Dia.	Input Shaft Dia.	Power(kW)	Ratio	Max. Torque(Nm)
RX/RXF38	20mm	16mm	0.18~1.1	1.6~3.76	20
RX/RXF58	20mm	19mm	0.18~5.5	1.3~5.5	70
RX/RXF68	25mm	19mm	0.18~7.5	1.4~6.07	135
RX/RXF78	30mm	24mm	1.1~11	1.42~5.63	215
RX/RXF88	40mm	28mm	3~22	1.39~6.44	400
RX/RXF98	50mm	38mm	5.5~30	1.42~5.82	600
RX/RXF108	60mm	42mm	7.5~45	1.44~6.65	830
RX/RXF128	75mm	55mm	7.5~90	1.56~6.47	1110
RX/RXF158	90mm	70mm	11~132	1.63~6.22	1680

R series gear units are available in the following designs:

1.R.. Y.. Foot shaft extension mounted helical gear reducer

2.RF.. Y.. Flange shaft extension mounted helical gear reducer

3.R.. R.. Y.. Base shaft extension mounted combined helical gear reducer

4.RF.. R.. Y.. Flange shaft extension mounted combined helical gear reducer

5.R.. AD.. Foot shaft extension installation, shaft input helical gear reducer

6.RF.. AD.. Flange axial extension type installation, shaft input helical gear reducer

7.R.. R.. AD.. Foot shaft extension mounted combined, shaft input helical gear reducer

8.RF.. R.. Y.. Flange shaft extension mounted combined, shaft input helical gear reducer

9.R or RF.. P or SF.. Coupling flange input type helical gear reducer (used when the motor user is equipped with or equipped with special motors)

Mounting poKition:
PoKition of the motor thermal box:

Input power rating and permissible torque:

Gear unit weight:
Photos of the factory area

ZHangZhoug Boqiang Transmission Co., Ltd. was established in 2002 and is a high-tech enterprise that integrates design, development, manufacturing, and operation, producing and selling reduction motors and power transmission equipment. The company is located in Oubei Town, HangZhoua County, at the forefront of national reform and opening up, known as the “Little Xihu (West Lake) Dis.” of HangZhou. Close to National Highway 104 and east to HangZhou International Airport and Xihu (West Lake) Dis. International Container Terminal; South to HangZhou Railway Station and Passenger Transport Center; There are also many national tourist attractions such as Yandang Mountain and Xihu (West Lake) Dis. River. With convenient transportation and unique geographical location, it is highly welcomed by domestic and foreign users.
Our company produces 12 series of helical gear reducers for various purposes, including shaft mounted helical gear reducers, helical bevel gear reducers, helical worm gear reducers, spiral bevel gear steering boxes, worm gear reducers, continuously variable transmissions, spiral elevators, and large gearboxes. The power coverage is 0.12-2000kw, with a reduction ratio of 1.25-30000. Various combinations, deformations, and specialized products can meet most industrial requirements. The R, K, F, and S series reducers adopt the modular design principle of unit structure, greatly reducing the types of components and inventory, and greatly shortening the delivery cycle. The components have strong universality and low maintenance costs.

Boqiang has a leading position in China in terms of technology level and product market share. The products are widely used in various fields such as metallurgy, light industry, packaging, medicine, petroleum, chemical industry, lifting and transportation, three-dimensional parking, printing and dyeing, elevators, wind power, etc. Boqiang Company has excellent performance. The transmission technology experts from the headquarters and numerous application engineers and after-sales service technicians from various regional offices provide you with rapid and comprehensive technical consultation and comprehensive services.

Looking back at the past and looking CZPT to the future, Boqiang has always been on the way forward, constantly improving and surpassing itself with high-quality products and comprehensive services, and winning the favor of the market and customers. We are willing to work together with people of insight from all walks of life to create a more brilliant tomorrow.
Processing equipment
Testing equipment and quality control
Quality:Insist on Improvement,Strive for CZPT With the development of equipment manufacturing indurstry,customer never satirsfy with the current quality of our products,on the contrary,wcreate the value of quality.
Quality policy:to enhance the overall level in the field of power transmission
Quality View:Continuous Improvement , pursuit of excellence
Quality Philosophy:Quality creates value

Supporting equipment

Packaging And Transportation

FAQ
Q1: I want to buy your products, how can I pay?
A: You can pay via T/T(30%+70%), L/C ,D/P etc.

Q2: How can you guarantee the quality?
A: One year’s warranty against B/L date. If you meet with quality problem, please send us pictures or video to check, we promise to send spare parts or new products to replace. Our guarantee not include inappropriate operation or wrong specification selection.

Q3: How we select models and specifications?
A: You can email us the series code (for example: RC series helical gearbox) as well as requirement details, such as motor power,output speed or ratio, service factor or your application…as much data as possible. If you can supply some pictures or drawings,it is nice.

Q4: If we don’t find what we want on your website, what should we do?
A: We offer 3 options:
1, You can email us the pictures, drawings or descriptions details. We will try to design your products on the basis of our
standard models.
2, Our R&D department is professional for OEM/ODM products by drawing/samples, you can send us samples, we do customized design for your bulk purchasing.
3, We can develop new products if they have good market. We have already developed many items for special using successful, such as special gearbox for agitator, cement conveyor, shoes machines and so on.

Q5: Can we buy 1 pc of each item for quality testing?
A: Yes, we are glad to accept trial order for quality testing.

Q6: How about your product delivery time?
A: Normally for 20’container, it takes 25-30 workdays for RV series worm gearbox, 35-40 workdays for helical gearmotors.

Application:	Motor, Machinery
Function:	Speed Changing, Speed Reduction
Layout:	Coaxial

Customization:	Available \| Customized Request

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Shipping Cost: Estimated freight per unit.	about shipping cost and estimated delivery time.

Payment Method:
	Initial Payment Full Payment

Currency:	US$

Return&refunds:	You can apply for a refund up to 30 days after receipt of the products.

helical gearbox

Helical Gearbox

Generally, a helical gearbox consists of two gears. The two gears have cut teeth and are inserted into one another. These two gears work together to transmit torque and speed. This type of gearbox is used in a wide variety of applications.

Working principle

Besides being cheaper to make, helical gears have several advantages over straight-cut spur gears. Firstly, they offer a smoother operation, less vibration, and lower noise levels. They also transmit larger loads than spur gears. These gears are used in a variety of industries, such as food processing, plastic industries, and oil industries.
Another important feature of helical gears is the smooth and gradual engagement of teeth. This helps them function more smoothly, especially when working under heavy loads. This process reduces shock and backlash, and also reduces wear.
In addition to this, the helix angle is a variable that can be adjusted to suit the application. The angle is usually either left or right, and can vary based on the view.
Helical gears are usually used in enclosed gear drives, such as conveyors, blowers, and elevators. They offer a smoother operation, which makes them ideal for applications that require quiet operation. However, helical gears are less efficient at transmitting power than spur gears.
The relative contact stress (RCS) calculated for a helical gear is similar to that of a spur gear. However, the volume Vi, which is a helix-dependent quantity, is different. This volume is defined as the total volume of the helical pocket, calculated by integrating along the face width. The volume of a generic pocket is larger than that of a helical pocket without a helix.
In addition, the contact ratio is reduced. This is due to the fact that two teeth are not parallel to each other. A thick oil film prevents the teeth from making contact. This film also cools the gear tooth surfaces.
The service factor is a number that takes into account the conditions under which a gear is used. It is usually a ratio between the maximum torque and the torque produced.

Efficiency

During a recent gearbox measurement campaign, 13 commercial gearboxes were extensively tested. Efficiency was measured at nominal torque and power. The resulting efficiency maps presented in this paper show that the efficiency of each gearbox is fairly similar.
The efficiency of a gearbox depends on the gears’ teeth and the ratio between them. The lower the ratio, the higher the efficiency.
Efficiency is also affected by the load torque. The higher the load torque, the lower the efficiency. This is especially true for gearboxes with high ratios.
The power loss is also affected by the contact and overlap ratios. For gearboxes with high ratios, the difference between the efficiency of the catalog and model-based efficiency is greater than for low-ratio gearboxes. Fortunately, improvements in lubrication are closing this gap.
The helical gearbox is the most effective gearbox in the industry. It transfers motion between parallel configurations and has less noise than spur gears. These gears engage gently and smoothly, so they are less prone to wear and tear. They also allow for greater power carrying capacity.
Although helical gears are effective, they are more expensive than traditional gears. However, the cost savings can be significant over time. It is important to consider the advantages of a helical gearbox before choosing a gearbox for your application.
When comparing the efficiency of a helical gearbox to that of a worm gearbox, the worm gearbox is more efficient. However, the difference in efficiency is not as great as many other gearboxes.
The efficiency of a helical gearbox is also affected by the speed of the gears. The gearbox must have adequate lubrication for bearings. It is also important to consider the space requirements in the drive line.

Applications

helical gearbox applications are widespread and they are used in many industries. Some of the applications include the printing industry, the rubber industry, the plastics industry, the cement industry, the earth-moving industry, and the chemical industry.
helical gearboxes are also used for conveyors and elevators. They are very durable and they can carry larger loads. They are also quieter than straight cuts. They are also used in many automotive transmissions.
helical gearboxes transmit power between two parallel shafts. They are a good substitute for spur gears. They are compact and they reduce vibration and noise. They are also very durable and they can work in non-parallel shafts.
The most common application is in the automotive industry. Helical gearboxes are also used in other industries. They are very useful in elevators, conveyors, and other heavy industrial settings. They also provide a high level of speed reduction and they are commonly used in automation control systems. They are also used in the mining industry and the cement industry.
helical gearboxes can be fabricated with various modifications. This is important because some industries may require different gearboxes.
Helical gears have a higher number of teeth. This leads to less wear and tear. They are also less noisy than spur gears. Their ability to generate a large thrust force is what makes them ideal for high-speed applications. They are also able to distribute load among several axes. They are also used in high shock and vibration applications.
helical gearboxes work at a higher efficiency than spur gears. However, the manufacturing costs for helical gears are greater than for spur gears.
helical gearboxes also have the advantage of transferring power between right-angle shafts. They can work in conjunction with crossed axis gears, which eliminate shock loading.

Variations

Several variations of helical gearbox are available in the market for different industries. They are widely used in automobile transmissions and other industries. They are quieter than spur gears. They are also durable and are highly efficient. However, they can cause higher friction and wear.
Helical gears are made of teeth that twist around a cylindrical gear body at an angle. The angle at which the gear teeth are cut is called the helix angle. The helix angle can be adjusted to fit the gear and its surroundings.
The helix angle also determines how much axial force the gear produces. A larger helix angle will generate more axial force. This increase in axial force must be absorbed by the bearings. The pressure angle also has a direct impact on the normal force and curvature radii of the tooth.
Helical gears can be mounted in parallel or crossed configuration. Helical gears connected in parallel require the same pitch and pressure angle to work correctly. Helical gears connected in crossed configuration can operate more quietly and smoothly than spur gears. However, they can also be used to transmit higher torques.
Helical gears are also available in single and double helical designs. Single helical gears are produced with the same tools and equipment as spur gears. Unlike spur gears, single helical gears have more surface contact. They are also better for precision drives.
Double helical gears are also called herringbone gears. They are produced by cutting a groove between two teeth. They can eliminate axial forces and are also used to provide high load carrying capacity.
Helical gears are commonly used for low power transmission applications. They also provide an alternative for connecting parallel and non-parallel shafts. They are also used in high speed applications. helical gearbox

Tool tip radius

Among the many parameters that are used in a helical gearbox design, the tooth tip radius is probably the most important, albeit only because it is one of the least intuitive. The best way to estimate the diameter of a helical gear tooth is to use a tooth reference profile as the basis for the calculation. A similar procedure is used to calculate the helix angle. A tool tip that is too small will result in a tooth that undercuts, which is a problem if you have a gear that has a high number of teeth and you want to reduce the chance of tooth failure.
For the gear buffs, there are many helical gearbox tools and processes, the tip diameter being but one of them. Luckily for gear design geeks, there is a lot more to the helical gearbox than meets the eye. For example, a helical gear tooth is a three-dimensional surface, so its shape and function can be computed mathematically or numerically.
In addition to a tooth tip that flies by the seat of your pants, the helical gearbox is also the product of a manufacturing process. The main culprit is the profile shift, which is the distance between the gear pitch diameter and the datum line of the cutting tool. While a gear designer could choose to ignore this issue, it is often a design consideration for the benefit of maximizing contact ratios. This means that the gear teeth must be able to withstand the torque of their respective gear trains.
A helical gear is a geometric package, and the best way to package the gears is to minimize tooth bending strength while maximizing tooth bending stiffness. To do this, you must limit the thickness of your tooth tip. This is usually accomplished with a tooth profile that is shaped to match the tooth contour of the gear it is intended to replace.
China Professional Small Gear Reducer R87 Series Helical Gear Hard Face Reducer Hard Face Gear Reducer bevel helical gearbox application
editor by CX 2023-10-25

China supplier R Series Helical Gear Reducer Variator De Velocidad Gearbox R107 R137 Planetary Gear Boxes crossed helical gearbox

Product Description

R Series Helical Gear Electric Motor Speed Reducer with 220V geared motor

R Series Rigid Tooth Flank Helical Gear Reducer

Small size, light weight, large transmission torque, superior performance, stable
operation, low noise, durable, can be installed in a variety of ways, can be matched with different types of motors, a wide range
of applications. Optional vertical flange installation, commonly used in mixing equipment.

Please tell me the ratio, input power and output torque.

I will help you to confirm the specific model.

1,Motor	2,Bolt	3,Washer
4,Lifting ring	5,Cap Screw	6,Vent Cap
7,Cover	8,Sealing shim	9,Parallel Key
10,Output shaft	11,Parallel Key	12,Circlip for hole
13,Skeleton oil seal	14,Gear	15,Bearing sleeve
16,Bear	17,Parallel Key	18,Gear
19,Plane Oil Seal	20,Circlip for hole	21,Gear
22,Gear Shaft	23,Plane Oil Seal	24,Circlip for hole
25,Bearing	26,Gear Shaft	27,Parallel Key
28,Bearing	29,Gear	30,Bearing
31,Circlip for hole	32,Bearing sleeve	33,Bearing
34,Bearing	35,Circlip for shaft	36,Plug cock
37,Oil mirror	38,Case	39,Circlip for shaft
40,Gear

Series:	R Series Helical Gear Reducer
Specifications:	17,27,37,47,57,67,77,87,97,107,137,147,167,177
Transmission Ratio:	1.3~289.74
Input Power (KW):	0.12~160
Output Torque (N.m):	3.5~23200

Product Description

R Series reducers are designed and manufactured on the basis of modular combination system.
There are a lot of motor combinations, installation forms and structural schemes. The transmission
ratio is classified and fine to meet different operating conditions, and the performance is superior.
Reinforced high rigid cast iron box; The hardened gear is made of high-quality alloy steel. Its surface
is carburized, quenched and hardened, and the gear is finely ground. It has stable transmission, low
noise, and large bearing capacity. Low temperature rise, long service life. It is widely used in metallurgy,

Detailed Photos

Company Profile

Hardness:	Hardened Tooth Surface
Installation:	Horizontal Type
Layout:	Coaxial
Gear Shape:	Cylindrical Gear
Step:	Single-Step
Type:	Gear Reducer

Samples:	US$ 50/Piece 1 Piece(Min.Order) \| Request Sample

helical gearbox

What Is a Helical Gearbox?

Generally, the gear is a rotating circular machine part, and its purpose is to transmit speed and torque. It works by meshing with other toothed parts. This type of gear is made up of cut teeth, inserted teeth, and gear teeth.

Helix angle

Typical helical gearbox angle ranges from 15 to 30 degrees. It is commonly used in worm gears and screws. The angle is important in motion conversion and power transfer.
Helical gearboxes are suitable for high load applications. Because the teeth engage more gradually, helical gearboxes require bearings that can manage axial loading. In fact, the forces produced by helical gears are much less than those of spur gears. Moreover, helical gearboxes are often less efficient.
There are two basic gear systems: the spur gear system and the helical gear system. These systems are similar in their basic functions. However, they are distinguished by a number of important differences. The spur gear system produces thrust forces, while the helical gear system transmits energy through two axial configurations. Both systems operate at speeds of around 50m/s.
Spur gears have a common pitch, whereas helical gears have a different pitch. The pitch of helical gears changes as the helix angle changes. This leads to a difference in the diameter of the gear and the hobs. This changes the radial module system pitch and increases the manufacturing costs.
The normal pressure angle is the angle of the load line into the plane normal to the tooth axis. This angle is sometimes called the reference value.
Helical gears are available in both left-hand and right-hand configurations. Helical gears are typically characterized by quiet operation and higher power carrying capacity. They are also appreciated for their NVH characteristics. They are used in the oil, food, and plastic industries. They also have a higher efficiency than zero-helix angle gears.

Efficiency

Using helical gears in a gearbox provides several benefits. They are more efficient, quieter and better able to handle high load cases. However, they are also more expensive than classic gears.
The efficiency of a helical gearbox is calculated by measuring the efficiency of the entire working area. This is measured using a predefined measuring grid. The result is presented by an efficiency contour map. It shows that efficiency is not uniform in the working area.
This is because of the varying angles of the teeth of the gears. It is also important to consider the size of the pitch circle and the angle of the helix. The pitch circle is larger for helical gears than for spur gears. This means more surface contact and more potential for transmission of power between the parallel shafts.
Efficiency calculations for synchronizers are relatively new. Using data from power losses can help estimate the accuracy of these calculations.
The efficiency of a gearbox is mainly dependent on the power range and the torque. The higher the range, the better the efficiency. When the power range is reduced, the efficiency is reduced. The efficiency decreases sharply for high ratio gearboxes.
The efficiency of a gearbox also depends on the type of gearbox. Typically, spur gears are the most efficient, but helical gears are also quite efficient. In the same way that an electrical motor is more efficient than a standard cylinder engine, helical gears are more efficient than spur gears. helical gearbox

Applications

Various industries utilize helical gearboxes for different applications. These gears are primarily used in heavy industrial settings and are also used in the printing and plastic industries.
They are useful in transferring motion between parallel and right-angle shafts. Helical gears are more durable and offer smoother gear operation than other gear types. They are also less noisy and produce less friction.
Typical applications of helical gearboxes include conveyors, coolers, crushers, and other heavy industrial applications. They are also used in the food, chemical, and printing industries.
There are two main types of helical gearboxes: single helical gearboxes and double helical gearboxes. In the single gearbox, the teeth are at a certain angle to the axis. In the double gearbox, the teeth are at opposite angles.
Both gear types have their own advantages. The spur type is more suited for low-speed applications and is also less expensive to manufacture. However, helical gears are more efficient. They are also less noisy and have more teeth meshing capacity.
Helical gears also have a greater pitch circle diameter than spur gears. Because of this, they can tolerate a greater load and are more durable. The helical gearbox also uses thrust bearings to support the thrust force. In order to ensure smooth operation, the helical gears gradually engage.
Helical gears are also used in the automotive industry. They are the most common gear type used in the automotive transmission process.

Spiral teeth vs helical teeth

Depending on the application, there are two types of bevel gears: helical gears and spiral teeth bevel gears. They have a similar geometry, but they perform differently. While helical gears provide smoother operation and higher load carrying capacity, spiral teeth bevel gears are more flexible, reduce the risk of overheating, and have longer service life.
Helical gears are primarily used for helical or crossed shafts. They have teeth that are cut at a precise angle to the gear axis. They provide a smooth action during heavy loads and are used at high speeds. They can also be used for non-parallel shafts. However, they are less efficient than spur gears.
Spur gears are primarily used for parallel shafts. Their straight teeth are parallel to the gear axis. Their teeth come in sudden contact, which causes vibration and a noticeable noise. However, helical gears provide gradual engagement, minimizing vibration and backlash.
The root stress of helical gears is different from spur gears. It is dependent on the helix angle and the web thickness of the gear. The pressure angle of the teeth also affects the curvature radii. These factors affect the transverse contact ratio, which decreases the length of the contact line.
Helical gears are often used to change the angle of rotation by 90 degrees. They can also be used to eliminate shock loading. These gears can be used on parallel or crossed shafts.

PB and PLB Series

PB and PLB series helical gearboxes offer a bevy of benefits that include high power density and a compact modular design. Aside from offering a high output torque, they also offer low maintenance and a long life span. The manufacturers have also gone to great lengths to provide a robust case, a rigid worm and screw thread arrangement and a high reduction ratio. They also provide parallel shaft input options. This means you can use one gearbox to drive a whole train of synchronized gears.
Aside from the fact that it is one of the most durable gearboxes available, it is also one of the most versatile. In fact, the company manufactures a number of gearbox variants, ranging from a single gearbox to a fully modular multiple gearbox design. The high power density means it can operate in tight industrial spaces. PB and PLB series helical Gearboxes are available in a range of sizes, ensuring you find the perfect fit for your application. The PB and PLB Series helical gearboxes are also a cost-effective option for your next application. The company is also able to offer custom solutions to meet your specific needs.
The best part is that you can get your hands on these Gearboxes at a price that is well worth your hard earned dollars. The manufacturers also offer an industry leading warranty. PB and PLB series helical and worm gearboxes are available in a variety of sizes and configurations to suit your application. helical gearbox

Herringbone gears

Using Herringbone gears in helical gearboxes can give the advantages of quiet operation at high speed and minimal axial force. These gears can also be used in heavy machinery applications. However, manufacturing them is more difficult and expensive.
Herringbone gears are similar to double helical gears, except that they do not have a central gap. Originally, they were made by casting to an accurate pattern.
Today, they are characterized by two sets of gear teeth that are stuck together. They have a very high coincidence, which increases the bearing capacity of the gearbox. They also reduce wear and noise.
These gears are usually smaller than double helical gears. This makes them ideal for applications where vibration is high. The large contact area reduces stress. They also have a high carrying capacity. They are used in transmissions, heavy machinery, and differentials.
Herringbone gears are also used in torque gearboxes, especially those that do not have a significant thrust bearing. However, their use is less common because of manufacturing difficulties.
There are several solutions to the problem of making herringbone gears. One solution is to use a central groove to cut the gears. Another is to stack two helical gears together. Another solution is to use older machines that can be rebuilt to make herringbone gears.
Herringbone gears can be processed using milling methods. However, this method cannot be used to process all herringbone gears.
China supplier R Series Helical Gear Reducer Variator De Velocidad Gearbox R107 R137 Planetary Gear Boxes crossed helical gearbox
editor by CX 2023-10-21

China Good quality Made in China High Efficiency Helical Gear Box for Europe Market helical gearbox for motor

Product Description

KPM-KPB series helical-hypoid gearboxes are the new-generation product with a compromise of advanced technology both at home and abroad.This product is widely used in textile, foodstuff, beverage,tobacco, logistics industrial fields,etc.
Main Features:
(1) Driven by hypoid gears, which has big ratios.
(2) Large output torque, high efficiency(up to 92%), energy saving and environmental protection.
(3) High quality aluminum alloy housing, light in weight and non-rusting.
(4) Smooth in running and low in noise, and can work long time in dreadful conditions.
(5) Good-looking appearance, durable service life and small volume.
(6) Suitable for all round installation, wide application and easy use.
(7) KPM series can replace NMRV worm gearbox; KPB series can replace CZPT W series worm gearbox;
(8) Modular and multi-structure can meet the demands of various conditions.
Main Material:
(1) Housing: aluminum alloy
(2) Gear wheel: 20CrMnTiH1,carbonize & quencher heat treatment make the hardness of gears surface up to 56-62 HRC, retain carburization layers thickness between 0.3 and 0.5mm after precise grinding.

Detailed Photos

Product Parameters

Model Information:

GEARBOX SELECTING TABLES
KPM50..						n1=1400r/min				160Nm

Model		i	i	n2	M2max	Fr2	63B5	71B5/B14	80B5/B14	90B5/B14
Model		nominal	actual	[r/min]	[Nm]	[N]	63B5	71B5/B14	80B5/B14	90B5/B14
3 Stage
KPM50C		300	294.05	4.8	130	4100		N/A	N/A	N/A
KPM50C		250	244.29	5.8	130	4100		N/A	N/A	N/A
KPM50C		200	200.44	7.0	130	4100		N/A	N/A	N/A
KPM50C		150	146.67	9.6	160	4000		N/A	N/A	N/A
KPM50C		125	120.34	12	160	3770			N/A	N/A
KPM50C		100	101.04	14	160	3560			N/A	N/A
KPM50C		75	74.62	19	160	3220			N/A	N/A
KPM50C		60	62.36	23	160	3030			N/A	N/A
KPM50C		50	52.36	27	160	2860			N/A	N/A
2 Stage
KPM50B		60	58.36	24	130	2960			N/A	N/A
KPM50B		50	48.86	29	130	2790				N/A
KPM50B		40	40.09	35	130	2610				N/A
KPM50B		30	29.33	48	160	2350				N/A
KPM50B		25	24.07	59	160	2200
KPM50B		20	20.21	70	160	2080
KPM50B		15	14.92	94	160	1880
KPM50B		12.5	12.47	113	160	1770
KPM50B		10	10.47	134	160	1670
KPM50B		7.5	7.73	182	160	1510


KPM63..,KPB63..						n1=1400r/min				180Nm

Model		i	i	n2	M2max	Fr2	63B5	71B5/B14	80B5/B14	90B5/B14
Model		nominal	actual	[r/min]	[Nm]	[N]	63B5	71B5/B14	80B5/B14	90B5/B14
3 Stage
KPM63C	KPB63C	300	302.50	4.7	160	4800		N/A	N/A	N/A
KPM63C	KPB63C	250	243.57	5.8	160	4800		N/A	N/A	N/A
KPM63C	KPB63C	200	196.43	7.2	160	4800			N/A	N/A
KPM63C	KPB63C	150	151.56	9.3	180	4650			N/A	N/A
KPM63C	KPB63C	125	122.22	12	180	4330			N/A	N/A
KPM63C	KPB63C	100	94.50	14	180	4070			N/A	N/A
KPM63C	KPB63C	75	73.33	20	180	3650				N/A
KPM63C	KPB63C	60	63.33	23	180	3480				N/A
KPM63C	KPB63C	50	52.48	27	180	3270				N/A
2 Stage
KPM63B	KPB63B	60	60.50	24	160	3430				N/A
KPM63B	KPB63B	50	48.71	29	160	3190
KPM63B	KPB63B	40	39.29	36	160	2970
KPM63B	KPB63B	30	30.31	47	180	2720
KPM63B	KPB63B	25	24.44	58	180	2530	N/A
KPM63B	KPB63B	20	18.90	70	180	2380	N/A
KPM63B	KPB63B	15	14.67	96	180	2130	N/A	N/A
KPM63B	KPB63B	12.5	12.67	111	180	2030	N/A	N/A
KPM63B	KPB63B	10	10.50	134	180	1910	N/A	N/A
KPM63B	KPB63B	7.5	7.60	185	180	1710	N/A	N/A


KPM75..,KPB75..						n1=1400r/min						350Nm

Model		i	i	n2	M2max	Fr2	63B5	71B5	80B5/B14	90B5/B14	100B5/B14	112B5/B14
Model		nominal	actual	[r/min]	[Nm]	[N]	63B5	71B5	80B5/B14	90B5/B14	100B5/B14	112B5/B14
3 Stage
KPM75C	KPB75C	300	297.21	4.8	300	6500			N/A	N/A	N/A	N/A
KPM75C	KPB75C	250	240.89	5.9	300	6500			N/A	N/A	N/A	N/A
KPM75C	KPB75C	200	200.66	7.0	300	6500			N/A	N/A	N/A	N/A
KPM75C	KPB75C	150	149.30	9.3	350	6500				N/A	N/A	N/A
KPM75C	KPB75C	125	121.00	12	350	5980				N/A	N/A	N/A
KPM75C	KPB75C	100	100.80	15	350	5520				N/A	N/A	N/A
KPM75C	KPB75C	75	79.40	19	350	5040					N/A	N/A
KPM75C	KPB75C	60	62.43	23	350	4730	N/A				N/A	N/A
KPM75C	KPB75C	50	49.18	29	350	4370	N/A				N/A	N/A
2 Stage
KPM75B	KPB75B	60	59.44	24	300	4660	N/A				N/A	N/A
KPM75B	KPB75B	50	48.18	30	300	4340	N/A				N/A	N/A
KPM75B	KPB75B	40	40.13	35	300	4080	N/A					N/A
KPM75B	KPB75B	30	29.86	47	350	3720	N/A	N/A				N/A
KPM75B	KPB75B	25	24.20	56	350	3500	N/A	N/A
KPM75B	KPB75B	20	20.16	71	350	3230	N/A	N/A
KPM75B	KPB75B	15	15.88	93	350	2950	N/A	N/A
KPM75B	KPB75B	12.5	12.49	113	350	2770	N/A	N/A	N/A
KPM75B	KPB75B	10	9.84	143	350	2550	N/A	N/A	N/A
KPM75B	KPB75B	7.5	7.48	188	350	2330	N/A	N/A	N/A


KPM90..,KPB86..						n1=1400r/min						500Nm

Model		i	i	n2	M2max	Fr2	63B5	71B5	80B5/B14	90B5/B14	100B5/B14	112B5/B14
Model		nominal	actual	[r/min]	[Nm]	[N]	63B5	71B5	80B5/B14	90B5/B14	100B5/B14	112B5/B14
3 Stage
KPM90C	KPB86C	300	297.21	4.8	450	6500			N/A	N/A	N/A	N/A
KPM90C	KPB86C	250	240.89	5.9	450	6500				N/A	N/A	N/A
KPM90C	KPB86C	200	200.66	7.0	450	6500				N/A	N/A	N/A
KPM90C	KPB86C	150	151.20	9.3	500	6500				N/A	N/A	N/A
KPM90C	KPB86C	125	125.95	12	500	5980				N/A	N/A	N/A
KPM90C	KPB86C	100	99.22	15	500	5520	N/A				N/A	N/A
KPM90C	KPB86C	75	75.45	19	500	5040	N/A				N/A	N/A
KPM90C	KPB86C	60	62.43	23	500	4730	N/A				N/A	N/A
KPM90C	KPB86C	50	49.18	29	500	4370	N/A				N/A	N/A
2 Stage
KPM90B	KPB86B	60	59.44	24	450	5890	N/A					N/A
KPM90B	KPB86B	50	48.18	30	450	5500	N/A					N/A
KPM90B	KPB86B	40	40.13	35	450	5170	N/A	N/A
KPM90B	KPB86B	30	30.24	47	500	4710	N/A	N/A
KPM90B	KPB86B	25	25.19	56	500	4430	N/A	N/A
KPM90B	KPB86B	20	19.84	71	500	4090	N/A	N/A	N/A
KPM90B	KPB86B	15	15.09	93	500	3730	N/A	N/A	N/A
KPM90B	KPB86B	12.5	12.49	113	500	3510	N/A	N/A	N/A
KPM90B	KPB86B	10	9.84	143	500	3240	N/A	N/A	N/A
KPM90B	KPB86B	7.5	7.48	188	500	2950	N/A	N/A	N/A

Outline Dimension:

Company Profile

About our company:
We are a professional reducer manufacturer located in HangZhou, ZHangZhoug province.Our leading products is full range of RV571-150 worm reducers , also supplied hypoid helical gearbox, PC units, UDL Variators and AC Motors.Products are widely used for applications such as: foodstuffs, ceramics, packing, chemicals, pharmacy, plastics, paper-making, construction machinery, metallurgic mine, environmental protection engineering, and all kinds of automatic lines, and assembly lines.With fast delivery, superior after-sales service, advanced producing facility, our products sell well both at home and abroad. We have exported our reducers to Southeast Asia, Eastern Europe and Middle East and so on.Our aim is to develop and innovate on basis of high quality, and create a good reputation for reducers.

Packing information:Plastic Bags+Cartons+Wooden Cases , or on request
We participate Germany Hannver Exhibition-ZheJiang PTC Fair-Turkey Win Eurasia

Logistics

After Sales Service

1.Maintenance Time and Warranty:Within 1 year after receiving goods.
2.Other Service: Including modeling selection guide, installation guide, and problem resolution guide, etc.

FAQ

1.Q:Can you make as per customer drawing?
A: Yes, we offer customized service for customers accordingly. We can use customer’s nameplate for gearboxes.
2.Q:What is your terms of payment ?
A: 30% deposit before production,balance T/T before delivery.
3.Q:Are you a trading company or manufacturer?
A:We are a manufacurer with advanced equipment and experienced workers.
4.Q:What’s your production capacity?
A:8000-9000 PCS/MONTH
5.Q:Free sample is available or not?
A:Yes, we can supply free sample if customer agree to pay for the courier cost
6.Q:Do you have any certificate?
A:Yes, we have CE certificate and SGS certificate report.

Contact information:
Ms Lingel Pan
For any questions just feel free ton contact me. Many thanks for your kind attention to our company!

Application:	Motor, Machinery, Marine, Agricultural Machinery, Industry
Function:	Distribution Power, Change Drive Torque, Change Drive Direction, Speed Changing, Speed Reduction
Layout:	Right-Angle
Hardness:	Hardened Tooth Surface
Installation:	Horizontal Type
Step:	Two Stage-Three Stage

Samples:	US$ 45/Piece 1 Piece(Min.Order) \| Request Sample

Customization:	Available \| Customized Request

helical gearbox

How to Design a Helical Gearbox

Basically, a gear is a rotating circular machine part that has teeth cut into it to transmit torque or speed. Gears operate on a similar principle to levers. However, gears are usually asymmetrical in nature, and they have meshing teeth that work together to transmit torque or speed.

Helix angle

Whether you’re looking for a right angle gearbox or a helical gearbox, the angle of the teeth is an important consideration. It affects contact ratios, radial force and the torque capacity of the gear.
A helical gearbox uses the same basic elements as a spur gear, except it has teeth that are closer together. It is also more suited for high-load applications. It is also quieter than conventional gears. The main differences between a helical gearbox and a spur gear are its pitch and the helix angle.
The pitch of a helical gear is measured in the plane perpendicular to the direction of the teeth. It may also be called circular pitch. The pitch of a helical gear may be greater or less than circular pitch.
The normal pitch of a helical gear is also measured in the plane perpendicular to its direction of rotation. It is often called the reference value.
Unlike the spur gear, a helical gear does not have a unique optimum pressure angle. A helical gear’s contact ratio will decrease as the pressure angle increases. This is due to the fact that the length of the contact line decreases.
The pitch of a helical planetary gearbox can be calculated by dividing the total helix angle of the pinion and gear by the sum of their normal pressure angles. The helix angle is usually between 15 and 30 degrees.

Center distance

During the design of a helical gearbox, the center distance between the gears is a crucial input parameter. The center distance should be accurately calculated and modified based on the actual usage conditions. Undersized center distances cause a gear to mesh at a point other than the pitch point, which can lead to increased noise, premature wear and amplitude modulated vibrations.
The best way to calculate a helical gear’s center distance is to calculate the helix angle. This is often referred to as the fundamental rule of gearing. The helix angle is a mathematical expression that defines the relationship between the transverse and normal planes of the gear tooth. The pitch circle diameter increases with helix angle.
The number of teeth in a gear is also a relevant input parameter. There are a number of considerations to consider for determining the helix angle, such as the tooth depth, the pitch diameter, the number of teeth, and the radii of the index circle. The tooth depth is a useful way to calculate bottom clearance.
During the design of a helical mesh, the radial and axial thrust forces are produced. The angular backlash of a gear may vary depending on the type of gear, the pitch diameter and the transmission ratio. The total length of contact lines varies more gradually with the helix angle.
The number of cross sections in a helical mesh is also important. The radial module form is more economic to manufacture. The helical gearbox can be produced by using the same tooth cutting tools as spur gears.

Backlash

Having a smooth rotation of meshing gears is important. However, backlash is an issue that needs to be addressed. There are several ways of controlling backlash. The amount of backlash required depends on the application, size, and accuracy of the gears.
There are two basic ways of reducing backlash. The first is to decrease the distance between the gear centers. The second is to use spring loaded gears. The latter works better in low torque unidirectional drives.
The difference between the distances is called the transverse contact ratio. The longer the distance, the more rotational motion is required. The angular backlash is the opposite of the radial backlash.
The backlash may also be measured in terms of the angular distance between two gears. This measurement can be converted into an angular value at the operating pitch circle. A worm gear is another example.
Using the correct backlash calculator can determine the correct amount of backlash for your helical gearbox. The amount of backlash depends on the accuracy of the individual gears and the type of gearbox.
The gearbox also has components like pulleys, bearings, and wheels. There are several ways of reducing backlash, including the use of bolts and shims to decrease the center distance between gears. In heavy duty applications, a rigid bolted assembly is common.
To calculate the backlash of a geartrain, one must know the gear ratio of each gear in the train and how much it is mated to the reference shaft. This information is especially helpful for cumulative backlash. helical gearbox

Durability

Optimal design, materials, manufacturing, and maintenance procedures affect the lifecycle of a gear. This includes production, repair and replacement costs. The optimum maintenance schedule must also account for lifecycle costs.
The life of a gear can be extended by proper tooth tip relief. This will reduce wear, improve meshing, and increase the longevity of your gear.
The helical gearbox is a specialized type of gearbox, which transforms power from one right angle axis to another. Typical applications include automotive transmissions. It is a popular choice in applications with high speed, high load, or non-parallel shafts. It is quieter and smoother than spur gears. The modular production method used in helical gearboxes provides the best possible standard for component integrity and performance.
One of the most important components of a helical gearbox is the thrust bearings. These support the thrust forces created by the gears and can absorb some of them. A helical gearbox is best suited for high load applications that require a smooth gearing motion.
A good helical gearbox is one that is manufactured with bearings that can handle axial loading. A helical gearbox with a central gulley is often needed for tool clearance. The helix angle also has a bearing on its durability.
The helix angle is also the source of the largest thrust force produced by a helical gear. This large thrust force is produced by a series of special angle cut teeth. This may be one of the reasons why helical gears have been used in high speed applications.

Noise

Generally speaking, helical gears are considered to be a relative quieter gear than spur gears. It is estimated that a helical gear set with axial contact ratio of 2 is about 19 dB quieter than a spur gear set with the same contact ratio.
The term “whine” is often used to describe the tonal character of gear noise. This is a function of the dynamic forces that act on the gear mesh. The dynamic forces are related to rotational speed.
There are two main types of gear noise: the gear-specific noise and peripheral component noise. Both of these types can be caused by high-speed gears transmitting the power of an engine.
The gear-specific noise may be related to the number of teeth in contact. A low contact ratio can slow down the rotational speed of the driven gear. However, a high contact ratio will not reduce the transmission error. This is why it is important to prioritize your design intent before attempting any noise reduction measures.
The tonal character of gear noise can be determined by collecting and analyzing data over a period of time. This may include a series of tests at loads within the desired load range. This measurement can serve as a starting point for a gearbox’s root cause analysis.
The gear-specific noise has a number of mechanisms. These include the aforementioned transmission error signal and the gear-specific whine. helical gearbox

Applications

Various industries like plastics, printing, cement and other heavy industrial settings use helical gearboxes. Their advantages include low power consumption, quieter operation and high load application. However, there are some limitations. For example, heat generated by sliding contact is a hindrance to efficiency. It should also be noted that gear weight affects the performance of the gear.
There are two ways to mesh helical gears. The first method is to place the shafts oriented at a certain angle of helix, in a mesh. The second method is to place the shafts oriented in a different angle of helix. The difference in angle is referred to as the helix angle.
The helical gearbox is the most widely used gearbox. It is compact in size and works at a high efficiency. It is useful for driving conveyors, coolers and machines. It is also used in automation control systems.
Helical gears are often chosen over spur gears for non-parallel shafts. They are also used in gearboxes for automotive applications and in elevators. They also reduce vibrations.
The gears are made of special teeth that are angled to an axis. They are also cut at an angle. This allows for perpendicular meshing. They can be divided into two basic categories: crossed axis gears and single helical gears. Single helical gears can be right-handed or left-handed. Crossed axis gears are usually used to connect parallel shafts.
China Good quality Made in China High Efficiency Helical Gear Box for Europe Market helical gearbox for motor
editor by CX 2023-10-19

China 1 30 ratio reduction gearbox F series coaxial helical electric gear motor with Hot selling

Applicable Industries: Hotels, Garment Shops, Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Farms, Restaurant, Home Use, Retail, Food Shop, CZPT engine EFI 1500cc go kart 80kw 4×4 off-road buggy with Built-in airbag Printing Shops, Construction works , Energy & Mining, Food & Beverage Shops, Advertising Company
Gearing Arrangement: Helical
Output Torque: 2.6-1195N,M
Input Speed: 1450 Rpm, 1500rpm
Output Speed: 14-280rpm
Brand: WANSHSIN
Product name: R series helical gear motor
Material: Cast Iron
Power: 0.12 KW- 18.55KW
Ratio: 2-14767
Output torque: 56 N.M -9070 N.M
Output speed: 56 N.M -9070 N.M
Safety factor: 1.3
Packing: Carton Box
Packaging Details: 1 pc/ carton
Port: FOB SHENGZHENG

1 30 ratio reduction gearbox F series coaxial helical electric gear motor

Size	R37	R57	R77	R87	R107
Ratio	3.41-134.82	4.39-782	5.31-1430	5.3-2873	6.66-7583
Power	0.12KW-3KW	0.12KW-7.5KW	0.12KW-11KW	0.12KW-18.5KW	0.12KW-18.5KW
Output torque	30-205N.M	40-400N.M	50-795N.M	50-1610N.M	80-4870N.M
Output speed(RPM)	0.1-821RPM	0.1-660RPM	0.1-795RPM	0.1-276RPM	0.1-220RPM

Company Information
WANSHSIN SEIKOU (ZheJiang ) CO., LTD. ( (hereafter referred to as “WANSHSIN”) is professional gear motor manufacturer integrates R&D, Valentines Day Gift Women Men Friendship Stainless Steel Black Silver Plated Custom Pinky Swear Engraved Promise Ring For Couple production ,sales and service. CZPT mainly manufactures high-precision gear motors which are widely used in robots, machine tools, CZPT garages and other industrial automation. As a gear motor manufacturer and complete intelligent automation solutions provider, CZPT introduced advanced import processing equipment, adopted advanced technology, to meet the strict high quality requirement for CZPT customers. All efforts made CZPT a reputable and high quality brand in domestic gear motor industry. CZPT occupies 15,000 Square CZPT and with 560 employees, with R&D office in Japan. CZPT has more than 300 advanced production equipment imported from China and abroad, and its fixed assets of the equipment reaches more than USD1.5 million. The annual production capacity is about 500, China Factory Outlet Spur Gear Reducer Soft Spur Gear Reducer Worm Gear Speed Reducer 000 sets of gear motors.

Exhibition
FAQ Q: What should I provide when I choose gearbox/speed reducer?A: The best way is to provide the motor drawing with parameter. Our engineer will check and recommend the most suitable gearbox model for your refer. Or you can also provide below specification as well:1) Type, model and torque.2) Ratio or output speed3) Working condition and connection method4) Quality and installed machine name5) Input mode and input speed6) Motor brand model or flange and motor shaft size

gearbox

Choosing a Gearbox For Your Application

The gearbox is an essential part of bicycles. It is used for several purposes, including speed and force. A gearbox is used to achieve one or both of these goals, but there is always a trade-off. Increasing speed increases wheel speed and forces on the wheels. Similarly, increasing pedal force increases the force on the wheels. This makes it easier for cyclists to accelerate their bicycles. However, this compromise makes the gearbox less efficient than an ideal one.

Dimensions

Gearboxes come in different sizes, so the size of your unit depends on the number of stages. Using a chart to determine how many stages are required will help you determine the dimensions of your unit. The ratios of individual stages are normally greater at the top and get smaller as you get closer to the last reduction. This information is important when choosing the right gearbox for your application. However, the dimensions of your gearbox do not have to be exact. Some manufacturers have guides that outline the required dimensions.
The service factor of a gearbox is a combination of the required reliability, the actual service condition, and the load that the gearbox will endure. It can range from 1.0 to 1.4. If the service factor of a gearbox is 1.0, it means that the unit has just enough capacity to meet your needs, but any extra requirements could cause the unit to fail or overheat. However, service factors of 1.4 are generally sufficient for most industrial applications, since they indicate that a gearbox can withstand 1.4 times its application requirement.
Different sizes also have different shapes. Some types are concentric, while others are parallel or at a right angle. The fourth type of gearbox is called shaft mount and is used when mounting the gearbox by foot is impossible. We will discuss the different mounting positions later. In the meantime, keep these dimensions in mind when choosing a gearbox for your application. If you have space constraints, a concentric gearbox is usually your best option.

Construction

The design and construction of a gearbox entails the integration of various components into a single structure. The components of a gearbox must have sufficient rigidity and adequate vibration damping properties. The design guidelines note the approximate values for the components and recommend the production method. Empirical formulas were used to determine the dimensions of the various components. It was found that these methods can simplify the design process. These methods are also used to calculate the angular and axial displacements of the components of the gearbox.
In this project, we used a 3D modeling software called SOLIDWORKS to create a 3-D model of a gear reducer. We used this software to simulate the structure of the gearbox, and it has powerful design automation tools. Although the gear reducer and housing are separate parts, we model them as a single body. To save time, we also removed the auxiliary elements, such as oil inlets and oil level indicators, from the 3D model.
Our method is based on parameter-optimized deep neural networks (DBNs). This model has both supervised and unsupervised learning capabilities, allowing it to be self-adaptive. This method is superior to traditional methods, which have poor self-adaptive feature extraction and shallow network generalization. Our algorithm is able to recognize faults in different states of the gearbox using its vibration signal. We have tested our model on two gearboxes.
With the help of advanced material science technologies, we can now manufacture the housing for the gearbox using high-quality steel and aluminium alloys. In addition, advanced telematics systems have increased the response time of manufacturers. These technologies are expected to create tremendous opportunities in the coming years and fuel the growth of the gearbox housing market. There are many different ways to construct a gearbox, and these techniques are highly customizable. In this study, we will consider the design and construction of various gearbox types, as well as their components.
gearbox

Working

A gearbox is a mechanical device that transmits power from one gear to another. The different types of gears are called planetary gears and are used in a variety of applications. Depending on the type of gearbox, it may be concentric, parallel, or at a right angle. The fourth type of gearbox is a shaft mount. The shaft mount type is used in applications that cannot be mounted by foot. The various mounting positions will be discussed later.
Many design guidelines recommend a service factor of 1.0, which needs to be adjusted based on actual service conditions. This factor is the combined measure of external load, required reliability, and overall gearbox life. In general, published service factors are the minimum requirements for a particular application, but a higher value is necessary for severe loading. This calculation is also recommended for high-speed gearboxes. However, the service factor should not be a sole determining factor in the selection process.
The second gear of a pair of gears has more teeth than the first gear. It also turns slower, but with greater torque. The second gear always turns in the opposite direction. The animation demonstrates this change in direction. A gearbox can also have more than one pair of gears, and a first gear may be used for the reverse. When a gear is shifted from one position to another, the second gear is engaged and the first gear is engaged again.
Another term used to describe a gearbox is “gear box.” This term is an interchangeable term for different mechanical units containing gears. Gearboxes are commonly used to alter speed and torque in various applications. Hence, understanding the gearbox and its parts is essential to maintaining your car’s performance. If you want to extend the life of your vehicle, be sure to check the gearbox’s efficiency. The better its functioning, the less likely it is to fail.

Advantages

Automatic transmission boxes are almost identical to mechanical transmission boxes, but they also have an electronic component that determines the comfort of the driver. Automatic transmission boxes use special blocks to manage shifts effectively and take into account information from other systems, as well as the driver’s input. This ensures accuracy and positioning. The following are a few gearbox advantages:
A gearbox creates a small amount of drag when pedaling, but this drag is offset by the increased effort to climb. The external derailleur system is more efficient when adjusted for friction, but it does not create as little drag in dry conditions. The internal gearbox allows engineers to tune the shifting system to minimize braking issues, pedal kickback, and chain growth. As a result, an internal gearbox is a great choice for bikes with high-performance components.
Helical gearboxes offer some advantages, including a low noise level and lower vibration. They are also highly durable and reliable. They can be extended in modular fashion, which makes them more expensive. Gearboxes are best for applications involving heavy loads. Alternatively, you can opt for a gearbox with multiple teeth. A helical gearbox is more durable and robust, but it is also more expensive. However, the benefits far outweigh the disadvantages.
A gearbox with a manual transmission is often more energy-efficient than one with an automatic transmission. Moreover, these cars typically have lower fuel consumption and higher emissions than their automatic counterparts. In addition, the driver does not have to worry about the brakes wearing out quickly. Another advantage of a manual transmission is its affordability. A manual transmission is often available at a lower cost than its automatic counterpart, and repairs and interventions are easier and less costly. And if you have a mechanical problem with the gearbox, you can control the fuel consumption of your vehicle with appropriate driving habits.
gearbox

Application

While choosing a gearbox for a specific application, the customer should consider the load on the output shaft. High impact loads will wear out gear teeth and shaft bearings, requiring higher service factors. Other factors to consider are the size and style of the output shaft and the environment. Detailed information on these factors will help the customer choose the best gearbox. Several sizing programs are available to determine the most appropriate gearbox for a specific application.
The sizing of a gearbox depends on its input speed, torque, and the motor shaft diameter. The input speed must not exceed the required gearbox’s rating, as high speeds can cause premature seal wear. A low-backlash gearbox may be sufficient for a particular application. Using an output mechanism of the correct size may help increase the input speed. However, this is not recommended for all applications. To choose the right gearbox, check the manufacturer’s warranty and contact customer service representatives.
Different gearboxes have different strengths and weaknesses. A standard gearbox should be durable and flexible, but it must also be able to transfer torque efficiently. There are various types of gears, including open gearing, helical gears, and spur gears. Some of the types of gears can be used to power large industrial machines. For example, the most popular type of gearbox is the planetary drive gearbox. These are used in material handling equipment, conveyor systems, power plants, plastics, and mining. Gearboxes can be used for high-speed applications, such as conveyors, crushers, and moving monorail systems.
Service factors determine the life of a gearbox. Often, manufacturers recommend a service factor of 1.0. However, the actual value may be higher or lower than that. It is often useful to consider the service factor when choosing a gearbox for a particular application. A service factor of 1.4 means that the gearbox can handle 1.4 times the load required. For example, a 1,000-inch-pound gearbox would need a 1,400-inch-pound gearbox. Service factors can be adjusted to suit different applications and conditions.

China 1 30 ratio reduction gearbox F series coaxial helical electric gear motor with Hot selling
editor by Cx 2023-07-11

China Hot selling K Series Bevel Helical Gear Unit Bevel Gearboxes supplier

Product Description

Product Parameters

K series helical bevel speed gearbox reducer
Product name	Model K 107 series helical bevel gearbox motor reducer with oil seal overload parallel transmission 90 degree China factory
Warranty	1 year
Applicable Industries	Hotels, Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Farms, Home Use, Retail, Printing Shops, Construction works , Energy & Mining, Food & Beverage Shops, Other, Advertising Company
Weight (KG)	50KG
Customized support	OEM, ODM, OBM
Gearing Arrangement	Helical
Output Torque	3.5-56845N.m
Input Speed	0-3000rpm/min
Output Speed	0.1-356rpm/min
Place of Origin	China
Product name	K Series Parallel Shaft Helical Gear Reducer
Output Torque	10-62800N.m
Output Speed	750-3000rpm/min
Input Speed	0-3000rpm/min
Input power	0.12-250kw
Mounting Position	Foot Mounted. Flange Mounted
Ratio	3.77~281.71
Gearing Arrangement	Helical
Reduction ratio	68
Hardness of Tooth Surface	Tooth surface hardness

Description: K Series Helical Bevel Gearbox

Overview
(1) Input mode: coupled motor, belted motor, input shaft or connection flange.
(2) Right angle output.
(3) Compact structure.
(4) Rigid tooth face.
(5) Carrying greater torque, high loading capacity.
(6) High precision gear, ensuring the unit to operate stably, smooth transmission.
(7) Low noise, long lifespan.
(8) Large overlap coefficient, abrasion resistant.

Detailed Photos

Certifications

Hardness:	Hardened Tooth Surface
Installation:	90 Degree
Layout:	Expansion
Gear Shape:	Bevel Gear
Step:	Single-Step
Type:	Gear Reducer

Samples:	US$ 1000/Piece 1 Piece(Min.Order) \| Request Sample

helical gearbox

Helical Gearbox

Using a helical gearbox can greatly improve the accuracy of a machine and reduce the effects of vibration and shaft axis impact. A gearbox is a circular machine part that has teeth that mesh with other teeth. The teeth are cut or inserted and are designed to transmit speed and torque.

Sliding

Among the many types of gearboxes, the helical gearbox is the most commonly used gearbox. This is because the helical gearbox has a sliding contact. The contact between two gear teeth begins at the beginning of one tooth and progresses to line contact as the gear rotates.
Helical gears are cylindrical gears with teeth cut at an angle to the axis. This angle enables helical gears to capture the velocity reversal at the pitch line due to the sliding friction. This leads to a much smoother motion and less wear. Moreover, the helical gearbox is more durable and quieter than other gearboxes.
Helical gears are divided into two categories. The first group comprises of crossed-axis helical gears, commonly used in automobile engine distributor/oil pump shafts. The second group comprises of zero-helix-angle gears, which do not produce axial forces. However, they do create heat, which causes loss of efficiency.
The helical gearbox configuration is often confounded, which results in higher working costs. In addition, the helical gearbox configuration does not have the same torque/$ ratio as zero-helix angle planetary gears.
When designing gears, it is important to consider the effects of gear sliding. Sliding can lead to friction, which can cause loss of power transmission. It also leads to uneven load distribution, which decreases the loadability of the helical planetary gearbox.
In addition, the mesh stiffness of helical gears is commonly ignored by researchers. An analytical model for the mesh stiffness of helical gears has been proposed.

Axial thrust forces

Several options are available for axial thrust forces in helical gearboxes. The most obvious is to use a double helical gear to offset the force component. Another option is to use a thrust bearing with a lower load carrying capacity. This becomes a sacrificial component.
In order to transmit a force, it must be distributed along the contact line. This force is the sum of tangential, radial and axial force components. All these components must be transferred from the source to the output. This is a complex process that involves the use of gears.
The axial force component must be transferred through the gears. The resultant force is then divided into orthogonal components and divided into the thrust directions. The radial force component is from the contact point to the driven gear center.
The axial force component is also determined by the size of the gear’s pitch diameter. A larger pitch diameter results in a greater bearing moment. Similarly, a larger gear ratio will produce a higher torque transmission.
It should be noted that the axial force component is only a small part of the total force. The normal force is distributed along the contact line.
The double helical gear is also not a perfect duplicate of the herringbone gear. It has two equal halves. It is used interchangeably with the herringbone gear. It also has the same helix angle. helical gearbox

Reduced impact on the shaft axis

Increasing the helix angle of a gear pair will reduce resonance effects on the shaft axis of a helical gearbox. However, this will not reduce the overall vibration in the gearbox. In fact, it will increase the vibration. This can lead to serious fatigue faults in the drive train.
This is because the helix angle has an effect on the contact line between two teeth. As the helix angle increases, the length of the contact line decreases. In addition, it has an effect on the normal force and curvature radii of the teeth. The pressure angle also affects the curvature radii.
Helical gears have several advantages over spur gears. These advantages include: lower vibration, NVH (noise, vibration and harshness) characteristics, and smooth operation under heavy loads. They also have better torque capability. However, they produce higher friction. They also require unique approaches to control their thrust forces.
The first step in reducing resonance effects is to regulate the meshing frequency of the helical gear stage. This can be done by varying the shift factors in the gear. If the shift factors are too large, then the gear will experience resonance effects. The helix angle is also affected by the gear’s shift factors. It is therefore important to control the gear’s geometry in order to reduce the resonance effects.
Next, the effects of the web structure and rim thickness on the root stress of the gear are examined. These are measured by strain gage. The results indicate that the maximum root stress is obtained when the worst meshing position is reached.

Quieter operation

Compared to spur gears, helical gears are much quieter in operation. This is due to their larger teeth. Aside from this, they have a higher load-carrying capacity. They also run smoother and have a higher speed capability. Helical gears are also a good substitute for spur gears.
The most significant parameter relating to noise reduction is the gear contact ratio. It ranges from below 1 to more than 10 and is determined by the number of teeth intersecting a parallel shaft line at the pith circle. It is also a good indicator of the level of noise reduction that helical gears provide.
In addition, helical gears have a lower impulse flexure than spur gears. This is because the contact point slides along the helical surface of each tooth. This also adds internal damping to the gear system.
While helical gears are less noisy than spur gears, they do have a high level of wear and tear. This can affect the performance of the gear. However, it is possible to improve the smoothness of the tooth surface by grinding. In addition, running the gears in oil can also help improve the smoothness of the tooth surface.
There are many industries that use helical gears. For example, the automotive industry uses them in their transmissions. They also are used in the agricultural industry. They are often used in heavy trucks.
Helical gears are also known to generate less heat and are quieter than other gears. They can also deliver parallel power transfers between parallel or non-parallel shafts.

Improved accuracy

Increasing the accuracy of a helical gearbox is the key to its operation and reliability. The accuracy of the gearbox is dependent on several features. Among the most important are the profile and lead. Moreover, the power requirements of a gear drive should be taken into consideration.
The profile is the most sensitive feature of a helical gear. If the profile is not symmetric, the gear will run with a noisy spur gear. In addition, the profile is also the most sensitive to lead.
A helical gearbox plays a key role in the power transmission of industrial applications. However, the heavy duty operating conditions make it susceptible to a variety of faults.
A helical gearbox’s performance depends on the accuracy of the individual gears. This is accomplished by minimizing the backlash. A common way to reduce backlash is to approach all target positions from a common direction. This approach also reduces transmission noise.
The accuracy of a helical gearbox can be improved by using a flexible electronic gearbox. This can reduce the degree of twist. Moreover, it can increase the accuracy of gear machining.
A helical gearbox with an electronic gearbox can increase the accuracy of twist compensation. It can also improve the linkage between B-axis, C-axis, and Z-axis. Moreover, the electronic gearbox will ensure the linkage relationship between Y-axis, Z-axis, and C-axis.
The accuracy of a helical Gearbox can be improved by calculating the position error of the gear train. Pitch deviation and helix angle deviation are two types of position error.

Reduced vibration

Using helical gearboxes can reduce vibration and noise. These gears are used in a variety of applications, including automotive transmissions. Moreover, these gears are quiet enough to operate in noise-sensitive applications.
Using CZPT software, three different gearbox housing designs are compared. The external dimensions and mass of each design are kept constant, but different quantities of longitudinal and transverse stiffeners are employed. The resulting models are then compared to experimental results. In addition, the free vibration response of these models is analyzed. The results are shown in Fig. 5.
In terms of noise reduction, the cellular model produces the lowest sound pressure level. However, the cross model produces the higher sound level. The cellular model also produces better peak to peak results.
The input-stage gear pair is the power source of the output-stage gear pair. The output-stage gear pair’s vibration is also studied. This includes a phase diagram and a frequency-domain diagram. The influence of the driving torque and the pinion’s velocity on the vibration is studied in a numerical manner. The time evolution of the normal force and the lubricant stiffness is also studied.
The input-stage pinion modification reduces the input-stage gear pair’s vibration. This reduction is achieved by adding dual bearing support to the input shaft.
China Hot selling K Series Bevel Helical Gear Unit Bevel Gearboxes supplier
editor by CX 2023-06-13

China Good quality RC Series Flexible Installationhelical 120~500n. M Gear Box Shaft Foot Flange Mounted Speed Reducer Helical Gearbox for Packing Machine difference between helical and worm gearbox

Product Description

RC series Flexible InstallationHelical 120~500n. M Gear Box Shaft foot flange Mounted Speed Reducer Helical Gearbox for Packing Machine

Housing	Nodular Cast Iron(Ductile Iron) QT600
Gears Profile	Hardened Helical Gears
Gears Material	20CrMnTi
Gears Processing	Carburizing, Quenching, Grinding
Gears Hardness	Surface Hardness: HRC58-62, Inner Hardness: HBS156-207
Gears Accuracy	6 Class
Shafts Material	40Cr
Input Configurations	Keyed CZPT Shaft Input IEC Normalized Motor Flange
Output Configurations	Keyed Hollow Shaft Output
Oil Seal	ZheJiang SOG
Bearings	NSK, SKF, HRB, ZWZ, LYC
Spare Parts	Torque arm, Optional Backstop

Application:	Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car
Hardness:	Soft Tooth Surface
Installation:	90 Degree
Layout:	Helical Gearbox
Gear Shape:	Conical – Cylindrical Gear
Step:	Stepless

Samples:	US$ 9999/Piece 1 Piece(Min.Order) \| Request Sample

helical gearbox

Why Choose a Helical Gearbox?

Choosing a helical gearbox is an important decision for any machine builder. It can help you to reduce maintenance costs, improve productivity and efficiency, and ensure that your equipment operates quietly and efficiently. In addition, it can also be compact in size and easy to install.

High productivity and efficiency

Compared to spur gears, helical gears have high productivity and efficiency. This is due to the fact that the helical gearbox is more effective at transferring power between right-angle configurations. Helical gears are also quieter. They also have the ability to tolerate a greater load. These gears are usually used in high-load applications, such as automotive transmission applications.
The basic features of helical gears include a slanted tooth face, a larger contact ratio, and a smoother performance. Helical gears are also less expensive than spur gears. They have more power carrying capacity, longer life, and are easier to maintain.
There are many factors that affect the efficiency of helical gearboxes. Some of them include the number of stages, reduction ratio, ambient conditions, and lubrication. They are also affected by the number of teeth.
Power loss in helical gears is mainly due to friction and heat. There are various approaches to minimize these losses. One approach is to analyse power losses using a numerical method.
Other factors that affect the efficiency of helical systems include speed, noise, and the number of teeth. The amount of power lost in gear mating is dependent on the load.

Low power consumption

Compared to other types of gearboxes, helical gearboxes have low power consumption. This is because they can tolerate more load, conduct smooth performance, and are quieter. They also require less oil changes and have a longer life span.
Helical gears have special teeth that are cut at an angle. The teeth are designed to engage gradually, rather than quickly. They can transfer power between parallel configurations and right-angle configurations.
Helical gearboxes are the most widely used gearboxes. They are also the most efficient. They can work at 98% efficiency. However, they are more expensive than spur gears. They can be packaged with oil-filled housings. They have less noise and require less maintenance. They can operate cooler, and have more torque capacity.
Helical gearboxes have two types: single and double helical gears. In the single type, the gears are perpendicular to the axis. They are usually used in automotive transmission applications. They can also be used in forward velocities. In the double type, the helical faces are next to each other.
Helical gears work at higher ratios, which increases their efficiency. They are also less noisy than spur gears. They are a good choice for applications that require high torque capacity. The basic efficiency of helical gearboxes ranges from 90% to 99.5%. They are also easier to operate and have a longer life span. They are suited to a wide range of applications.

Compact in size

Having a shiny new set of wheels is a nice change of pace. You get to sit in style and you get to drive it like the pro. The trick is finding the right one at the right time. Fortunately, there are plenty of companies who know how to build a high quality car that can be afforded by the average Joe. You’ll find all types of cars from sports coupes to hatchbacks. You’ll also find all types of drivers from the young professional to the seasoned veteran. You’ll also find all types of roads from main streets to back roads. There are even all types of parking spaces to choose from. With a bit of planning and some research, you’ll find the perfect fit for you and your family. You can’t help but wonder why you didn’t choose a vehicle with this many perks sooner. It’s a nice way to spend a night on the town, without having to worry about a parking fee. The next time you’re in the mood to take the family out to the country for a weekend in the great bluffs, you’ll know which ones to avoid.

Noise-free operation

Compared to spur gears, helical gears have better speed capability and quieter operation. However, helical gearboxes often have problems that stop their service. These faults result in increased productivity costs. These problems include fatigue, chipping tip, crack and missing tooth.
In this paper, we propose a novel signal processing scheme to detect gearbox faults at constant speed. The method involves the use of spectral subtraction (SS) to remove the spectral noise of a signal. This approach is widely used in speech signal processing. It is also used to estimate real-time noise information. The method was successfully applied to the analysis of gearbox faults.
The spectral subtraction technique is applied to the transmission error and to the side-band frequency feature. The side-band frequency is equal to the rotation frequency of the input shaft. A square envelope spectrum method is used to obtain the spectral feature. It was then used to obtain the corresponding fault signal. The method is then compared with experimentally measured noise data.
It is also important to note that the side-band feature is not stable in different noise levels. The optimal demodulation subband selection method is not obvious. However, the proposed method can obtain a stable amplitude value when SNR is low.
Another important factor that reduces noise is the overlap ratio. The overlap ratio is the sum of the transverse contact ratio and the face contact ratio. When the overlap ratio approaches one, the noise is minimized.

Improved performance at high speeds

Whether used in an industrial, automotive or power generation application, helical gearboxes provide a number of benefits over traditional spur gearing systems. These advantages include reduced noise, higher load capacity and smoother operation.
In an effort to reduce noise and improve performance at high speeds, Parker engineers developed a helical gearbox that runs quieter and produces 30-40% more torque than a conventionally modified gear. They also redesigned the entry and exit points of the gear tooth for increased efficiency and strength.
The high-speed helical geartrain has been tested at 5,000 hp power. The tests were performed in the High-Speed Helical Geartrain Test Facility at the NASA Glenn Research Center. The tests were conducted at four different design configurations and at multiple input shaft speeds. These tests included temperature increases from inlet to outlet, fling off temperatures, and power loss of the helical system.
The first step was to improve load distribution of the gear pair. This is done by modifying the microgeometry of each gear. In addition to modifying the microgeometry of each tooth, the length of the contact line was extended. This resulted in a higher tooth contact ratio.
Another option is to modify the straddle-mounted pin of the PGS. This is a complicated task because of spatial constraints. In order to determine whether the pin will have the desired effect, it needs to be tested in real-world tests. helical gearbox

Reduce maintenance costs

Compared to spur gears, helical gears have several advantages, such as less noise and vibration, greater load carrying capacity, and longer life. They also have a reduced maintenance cost.
Helical gears can be divided into two main types: single helical and crossed axis helicals. In the single helical type, two or three teeth connect at all times.
In crossed axis helicals, the shafts are inclined at a variety of angles. These gears are primarily used in non-perpendicular transmissions. They can have very low load carrying capacity, but they offer better strength and speed reduction than spur gears.
The double helical type has two mirrored rows of teeth that are angled. This type of gear is also known as a herringbone gear. It’s a design that’s ideal for non-perpendicular transmissions.
Helical gears are packaged in oil filled housings. They are a space saving gear reducer. They are used in automobile transmissions and other forward speeds. They are also used in industrial gearboxes.
Helical gears can be made of either solid or semi-solid materials. They can be sliced into an arbitrary number of cross sections. This allows the helix to be adjusted to suit the application.
It’s important to choose the right gear for your application. The gear’s design may include the number of teeth, lubricant type, surface treatment, and the tooth angle. It’s also important to choose the right lubricant, because it can affect the noise levels and the efficiency of the gear.
China Good quality RC Series Flexible Installationhelical 120~500n. M Gear Box Shaft Foot Flange Mounted Speed Reducer Helical Gearbox for Packing Machine difference between helical and worm gearbox
editor by CX 2023-06-12

China Custom Gear Reducer, Industrial Helical Reductor, CZPT Type Right Angle Gearbox helical gears are used as transmission components

Product Description

Gear Reducer, Industrial Helical Reductor, CZPT Type Right Angle Gearbox

Features:
1. High efficiency and save power.
2. Wide speed ranges and high torque.
3. Multi-structure, various assembling methods.
4. High loading support, stable transmitting and low noise level.
5. Excellent sealing, wide range of industry application.
6. It adopts various cooling and lubricating modes.

Product photo:

Specification:

ANG HB Industrial Gear Reduktor
Type	Helical parallel shaft type, Bevel-helical right-angle type
Model	H1/B1~H26/B26
Input power	3 ~ 5000 KW;
Input speed	750rpm ~ 1500rpm
Reduction ratio	1/1.25 ~ 1/450
Output torque	3 ~ 900kN.m
Install type	Foot / CZPT shaft / Hollow shaft / Output flange…
Efficiency	Single-stage 98%, 2-stage 96%, 3-stage 94%, 4-stage 92%
Precision of gear	Accurate grinding, class 6
Design position	A / B / C / D / E / F / G / H / I
Accessories	Back stop / Cooling fan / Cooling coil / Oil pump / Compensation tank …

Typical Application

♦ Coal mining
♦ Power Plant Equipment
♦ Metallurgical Industry
♦ Metal Forming Machinery
♦ Petrochemical Industry
♦ Mining Machine
♦ Hoisting Machinery
♦ Cement and construction Industry
♦ Environmental Protection Industry
♦ Cable Industry
♦ Chemical industry
♦ Food Machinery

Models

Horizontal:
Parallel shaft gear unit box
H1SH1, H1SH3, H1SH5, H1SH7, H1SH9, H1SH11, H1SH13, H1SH15, H1SH17, H1SH19
H2SH, H2HH, H2DH, H2KH, H2FH, H3SH, H3HH, H3DH, H3HM, H3DM, H4SH, H4HH, H4DH, H4HM, H4DM

Bevel helical right angle gear unit
B2SH, B2HH, B2DH, B2HM, B2DM, B3SH, B3HH, B3DH, B3HM, B3DM, B4SH, B4HH, B4DH, B4HM, B4DM

Vertical:
Parallel shaft gear unit box
H2SV, H2HV, H2DV, H3SV, H3DV, H4SV, H4HV, H4DV, H4KV, H4FV

Bevel helical right angle gear unit
B2SV, B2HV, B2DV, B3SV, B3HV, B3DV, B4SV, B4HV, B4DV, B4KV, B4FV

FAQ
Q: Can you make the gear reduktor with customization?
A: Yes, we can customize per your request, like flange, shaft, configuration, material, etc.

Q: Do you provide samples?
A: Yes. Sample is available for testing.

Q: What is your MOQ?
A: It is 10pcs for the beginning of our business.

Q: What’s your lead time?
A: Standard product need 5-30days, a bit longer for customized products.

Q: Do you provide technology support?
A: Yes. Our company have design and development team, we can provide technology support if you
need.

Q: How to ship to us?
A: It is available by air, or by sea, or by train.

Q: How to pay the money?
A: T/T and L/C is preferred, with different currency, including USD, EUR, RMB, etc.

Q: How can I know the product is suitable for me?
A: >1^ST confirm drawing and specification >2^nd test sample >3^rd start mass production.

Q: Can I come to your company to visit?
A: Yes, you are welcome to visit us at any time.

Q: How shall we contact you?
A: You can send inquiry directly, and we will respond within 24 hours.

Application:	Machinery
Hardness:	Hardened Tooth Surface
Installation:	Horizontal Type
Layout:	Right Angle
Gear Shape:	Cylindrical Gear
Step:	Single-Step

Samples:	US$ 500/Piece 1 Piece(Min.Order) \| Request Sample

Customization:	Available \| Customized Request

helical gearbox

What Is a Helical Gearbox?

Basically, a gearbox is a rotating circular machine part that consists of toothed components, which mesh together. Its function is to transfer speed and torque to other parts of the machine. It is also similar to a lever, and operates on the same principle.

Double helical gears

Having a helical gearbox has many advantages, including higher efficiency, high strength, and a superior gear system. However, it has its drawbacks. One of these drawbacks is the axial thrust. Axial thrust is not a problem with single helical gears, but it is a problem with double helical gears.
In double helical gears, there are two sets of teeth that are arranged in a V-shape. In one set of teeth, there is a groove that enables the axial force to be cancelled out. The groove eliminates the need for thrust bearings and allows for efficient handling of high capacity power transmission.
Aside from the axial thrust, there are also issues with face contact. Asymmetric load sharing and oscillation put substantial alternating loads on the shaft bearings. These alternating loads can lead to early bearing failure.
Fortunately, helical gears are smoother than spur gears, which means they can withstand more load. They also have greater pitch circle diameter than spur gears. However, they are limited in their scope. The pitch error distribution on the helical gears is typically limited to 50 mm peak-to-peak amplitude. It is important to control the phase difference of oncoming gears with high accuracy.
Typically, the helical gears that are used in a gear box are assembled from the same module. This allows for interchangeability of components and economical construction. A normal module set can use the same tooth-cutting tools that are used for spur gears.
Double helical gears are used in power transmission in fluid pumps and gas turbines. They are also commonly used in planetary reduction gear boxes for engines in civil aviation.
Generally, double helical gears are larger than single helical gears. They are typically generated from a special generator. They are also more expensive.
However, manufacturers are looking to find gears that are more convenient to use. One solution is to manufacture double helical gears on a multi-tasking machine tool. This allows the gear to be machined in complicated shapes.
The multi-tasking machine tool can also modify the tooth surface. This is useful for 3D printing helical gears with a high level of accuracy. helical gearbox

Crossed-axis helical gears

Several factors affect the performance of crossed-axis helical gears. One of the important factors is the position of the gears on the cross shaft. The gears will not perform properly if they are not oriented in a different direction.
Crossed-axis helical gears have a special situation, in which they will not function properly if the gears are oriented in the same direction. This is especially true for automobile oil pump/distribution shafts. Depending on the situation, gears will operate as a normal helical gear or as a spur gear.
Compared to spur gears, crossed-axis helical gears have relatively higher capacity. However, the transverse contact ratio of these gears is reduced. This decrease is dependent on the pressure angle. The pressure angle affects the curvature radii of the teeth. In addition, the length of the contact line is reduced. This shortens the efficiency of the gear.
Helix angle of crossed-axis helical gears is 45 degrees. It may be a left-handed or a right-handed gear. The pitch circle diameter of a helical gear may be big compared to that of a spur gear. This is due to the fact that the gears are cut at an angle to the shaft.
In the axial direction, the meshing of helical gears is very similar to spur gears. However, there are a few design rules to optimize these gears.
The first rule is that the gears must be staggered in opposite directions. If the gears are not staggered, the contact lines cannot be changed.
The second rule states that the pitch of a helical gear is dependent on its helix angle. It is possible to calculate the pitch circle of a helical gear, by integrating along the face width. In addition, the length of the contact lines decreases as the pressure angle increases. However, this decrease is not as large as that of a spur gear.

Right angle helical gears

Choosing a right angle helical gearbox can be difficult. With so many types, sizes, and configurations to choose from, it can be difficult to figure out which one is right for your application. The key to choosing the right gearbox is understanding your application and what factors are most important to you.
For example, if you are looking for a gearbox that can be used in a high-speed, high-torque application, the most important consideration is the efficiency of the product. Right-angle gearboxes are compact and easy to maintain, making them ideal for high-torque applications.
Some applications that require high-torque gears include pulp and paper manufacturing, food processing, mining, and car washes. Some of the advantages of right angle gears include high efficiency, low maintenance, and low noise. If you are in the market for a right angle helical gearbox, make sure to select a supplier that can provide you with a wide range of options.
Right-angle helical gearboxes come in several different bevel configurations. Spiral bevel gears require precision and are difficult to manufacture. However, they can be used interchangeably. Spiral miter gears are designed to rotate in the same direction as the input shaft, which helps ensure a smooth, direct transfer of power.
If you are considering a helical gearbox for a high-speed application, you will need to know your preferred input/output ratio. The standard ratios are 1:1 and 2:1. If you need a step-up ratio, you can install an additional output shaft opposite the input shaft.
Other benefits include lower running noise, superior strength, and durability. Because they are made of larger teeth, helical gears are less likely to wear out. Also, helical gears provide higher power carrying capacity.
To determine which type of right angle gearbox is best suited for your application, you should discuss your needs with your supplier. They should be able to offer a wide range of options, including custom solutions. They should also provide you with a list of past clients and online reviews.
To find a right angle helical gearbox that can meet your needs, it’s important to understand the various design features. For example, you should make sure that your gearbox has a self-locking capability, which means that the load cannot drive the worm. Having a self-locking gearbox also means that you do not need to install a braking system. helical gearbox

Spiral teeth

Using helical gearboxes to drive a motor car or truck is an efficient method of power transmission. However, the efficiency of this method depends on the helix angle of the gear. The helix angle is the angle that the gear teeth are cut at.
Helical gearboxes may be of different helix angles, depending on the specific gear set. The helix angle can vary between 15 and 30 degrees. This is important because the helix angle has a significant effect on the position of tooth contact. If the contact is not in a proper position, then there will be a large amount of vibration. This will affect the speed of the gear.
Helical gearboxes can be of two types: crossed axis and parallel axis. Crossed axis gears are usually used to connect parallel shafts. They have the same center gap as spur gears. On the other hand, parallel axis gears are usually used to drive a motor. The difference between the two types of gearboxes is their design and arrangement.
In addition to the helix angle, the gears may have different fillet, teeth, and radius. This means that the gear will have different NVH characteristics. In addition, there are different types of spiral teeth that may be used in the gearbox.
Hypoid gears are also similar to spiral bevel gears, but they differ in that the axes of the gear shaft do not intersect the axis of the hypoid gear. The hypoid gear exerts a very high thrust load on the bearings.
When compared to a straight bevel gear, the hypoid gear experience a smoother, less noisy operation. They also produce less shock loading.
Spiral bevel gears are also designed to produce less vibration. They are also more cost-effective. However, they require a larger diameter to transmit the same torque. This can lead to a reduced mechanical efficiency and lower fuel economy.
The best spiral bevel gears can carry a higher thrust load than straight teeth. This is why they are preferred for applications that require heavy load efficiency.
They are also appreciated for their NVH characteristics. They are also a quieter option for applications that require high speed. Helical gears can be used in many different industries. The food, automotive, and oil industries are examples of these types of gears.
China Custom Gear Reducer, Industrial Helical Reductor, CZPT Type Right Angle Gearbox helical gears are used as transmission components
editor by CX 2023-06-09

China manufacturer ND Exporter 150kw Helical Tractor Pto Rolling Shutter Gear Box (B170) helical gearbox drive

Product Description

Item No.:	B170, Casting Iron Housing Gearbox with Extension
Ratio and Shaft:	OEM acceptable
Key word	Agricultural Machinery Gearbox

Company Profile

In 2571, HangZhou CZPT Machinery Co.,ltd was established by Ms. Iris and her 2 partners(Mr. Tian and Mr. Yang) in HangZhou City, ZHangZhoug province, China, all 3 Founders are engineers who have more than averaged 30 years of experience.

We, CZPT machinery established a complete quality management system and sales service network to provide clients with high-quality products and satisfactory service. Our products are sold in 36 countries and regions in the world, our main market is the European market.

Factory & Workshop

Professional
30 years experience engineman. R&D office, Test laboratory, CNC lathe workshop operated by professionals.

Responsible
2~10years warranty. Attitude determines everything, details determine success or failure. We are responsible for your products.

Scientific management
100% tested. Strict company system and scientific material management will reduce the error rate.

Certifications

We’re working on research and manufacturing all kinds of gearbox reducer and mechanical parts these 11 years, and have obtained certificates including ISO9001, many Gearbox Patents, SGS, BV, etc.

Sample Room

Through our CZPT brand ND, CZPT Machinery delivers agricultural solutions to agriculture machinery manufacturer and distributors CZPT through a full line of spiral bevel / straight bevel / spur gearboxes, drive shafts, sheet metal, hydraulic cylinder, motors, tyre, worm gearboxes, worm operators etc. Products can be customized as request.

FAQ

Q: Are you trading company or manufacturer ?
A: We are exactly a factory.

Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free but do not pay the cost of freight.

Q: How long is your delivery time ? What is your terms of payment ?
A: Generally it is 40-45 days. The time may vary depending on the product and the level of customization.
For standard products, the payment is: 30% T/T in advance, balance before shippment.

Q: What is the exact MOQ or price for your product ?
A: As an OEM company, we can provide and adapt our products to a wide range of needs.
Thus, MOQ and price may greatly vary with size, material and further specifications;
For instance, costly products or standard products will usually have a lower MOQ.

Please contact us with all relevant details to get the most accurate quotation.

Type:	Gearbox
Usage:	Farmland Infrastructure, Tillage, Harvester, Planting and Fertilization, Grain Threshing, Cleaning and Drying
Material:	Iron
Power Source:	Tractor
Weight:	More Than 65kg
After-sales Service:	Provided

Samples:	US$ 1000/Piece 1 Piece(Min.Order) \| Request Sample

Customization:	Available \| Customized Request

helical gearbox

How to Design a Helical Gearbox

Helix angle

Center distance

Backlash

Durability

Noise

Applications

Various industries like plastics, printing, cement and other heavy industrial settings use helical gearboxes. Their advantages include low power consumption, quieter operation and high load application. However, there are some limitations. For example, heat generated by sliding contact is a hindrance to efficiency. It should also be noted that gear weight affects the performance of the gear.
There are two ways to mesh helical gears. The first method is to place the shafts oriented at a certain angle of helix, in a mesh. The second method is to place the shafts oriented in a different angle of helix. The difference in angle is referred to as the helix angle.
The helical gearbox is the most widely used gearbox. It is compact in size and works at a high efficiency. It is useful for driving conveyors, coolers and machines. It is also used in automation control systems.
Helical gears are often chosen over spur gears for non-parallel shafts. They are also used in gearboxes for automotive applications and in elevators. They also reduce vibrations.
The gears are made of special teeth that are angled to an axis. They are also cut at an angle. This allows for perpendicular meshing. They can be divided into two basic categories: crossed axis gears and single helical gears. Single helical gears can be right-handed or left-handed. Crossed axis gears are usually used to connect parallel shafts.
China manufacturer ND Exporter 150kw Helical Tractor Pto Rolling Shutter Gear Box (B170) helical gearbox drive
editor by CX 2023-06-07

China wholesaler Ep Series Precision Planetary Gear Motor Right NEMA32 Brushless DC Customized High Quality Non-Standard Dedicated Helical Reducer Transmission Gearbox helical gears backlash

Product Description

Ep Series Precision Planetary Gear Motor Right NEMA32 Brushless DC Customized High Quality Non-Standard Dedicated Helical Reducer Transmission Gearbox

planetary gearbox

Planetary GearBoxes for Construction equipment
The gearbox is a vital mechanical part for construction machinery. Built to the highest quality standards, our planetary gearheads have won the recognition and trust of our customers. Our gear units can be used on various construction machines, such as tower cranes, crawler cranes, beam carriers, excavators, graders, concrete mixing plants, asphalt pavers, bridge machines, milling machines and other equipment. They are essential transmission components for bridge and road construction machines and all kinds of mining machines.

Application

Application:	Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car
Hardness:	Soft Tooth Surface
Installation:	90 Degree
Layout:	Planetary
Gear Shape:	Conical – Cylindrical Gear
Step:	Stepless

Samples:	US$ 9999/Piece 1 Piece(Min.Order) \| Request Sample

helical gearbox

What Is a Helical Gearbox?

Double helical gears

Crossed-axis helical gears

Right angle helical gears

Spiral teeth

Using helical gearboxes to drive a motor car or truck is an efficient method of power transmission. However, the efficiency of this method depends on the helix angle of the gear. The helix angle is the angle that the gear teeth are cut at.
Helical gearboxes may be of different helix angles, depending on the specific gear set. The helix angle can vary between 15 and 30 degrees. This is important because the helix angle has a significant effect on the position of tooth contact. If the contact is not in a proper position, then there will be a large amount of vibration. This will affect the speed of the gear.
Helical gearboxes can be of two types: crossed axis and parallel axis. Crossed axis gears are usually used to connect parallel shafts. They have the same center gap as spur gears. On the other hand, parallel axis gears are usually used to drive a motor. The difference between the two types of gearboxes is their design and arrangement.
In addition to the helix angle, the gears may have different fillet, teeth, and radius. This means that the gear will have different NVH characteristics. In addition, there are different types of spiral teeth that may be used in the gearbox.
Hypoid gears are also similar to spiral bevel gears, but they differ in that the axes of the gear shaft do not intersect the axis of the hypoid gear. The hypoid gear exerts a very high thrust load on the bearings.
When compared to a straight bevel gear, the hypoid gear experience a smoother, less noisy operation. They also produce less shock loading.
Spiral bevel gears are also designed to produce less vibration. They are also more cost-effective. However, they require a larger diameter to transmit the same torque. This can lead to a reduced mechanical efficiency and lower fuel economy.
The best spiral bevel gears can carry a higher thrust load than straight teeth. This is why they are preferred for applications that require heavy load efficiency.
They are also appreciated for their NVH characteristics. They are also a quieter option for applications that require high speed. Helical gears can be used in many different industries. The food, automotive, and oil industries are examples of these types of gears.
China wholesaler Ep Series Precision Planetary Gear Motor Right NEMA32 Brushless DC Customized High Quality Non-Standard Dedicated Helical Reducer Transmission Gearbox helical gears backlash
editor by CX 2023-06-05