China manufacturer Forged Hobbing Helical Spiral Bevel Gear/Helical Spur Gear for Sale supplier

Product Description

Product Description

Material: 45#Steel,20CrMnTi,40Cr,20CrNiMo,20MnCr5,GCR15SiMn,42CrMo,2Cr13stainless steel,Nylon,Bakelite,Copper,Aluminium.etc
Process: The main process is Gear Hobbing, Gear Shaping and Gear Grinding, Selecting production process according to the different products.
Heat Treatmente: Carburizing and quenching ,High-frequency quenching,Nitriding, Hardening and tempering, Selecting heat treatment according to the different materials.
Testing Equipment Rockwell hardness tester 500RA, 

Double mesh instrument HD-200B & 3102,

Gear measurement center instrument CNC3906T 

other High precision detection equipments

Certification 0.1-90 kg
Casting Size: Max linear size: 1200 mm, Max diameter size: 600 mm
Machining tolerace: GB/T19001-2016/ISO9001:2015
Machining surface roughness: Ra0.8 ~ 6.3 um
Material standard: GB, ASTM, AISI, DIN, BS, JIS, NF, AS, AAR
Usage: Used in printing machine, cleaning machine, medical equipment, garden machine, construction machine, electric car, valve, forklift, transportation equipment and various gear reducers.etc
Quality control: 100% inspection before packing
Manufacture Standard 5-8 Grade ISO1328-1997.

Company Profile

SIMIS CASTING, established in year of 2004, is a professional foundry, including integrating development and production together, specialized in producing various kinds of investment casting parts, and CHINAMFG parts. These casting parts are widely used in automobile industry, railway vehicle, construction machine, municipal works, pipeline, petrochemical industry, mine, electric utility industry and so on.

SIMIS has 6 affiliated casting workshop and 2 professional CNC machining workshops. There are 500 staffs and 40 engineers now in our company. Its annual production capacity for all types of casting parts is about 3000 tons. Holding over 100 sets of advanced casting parts, machining and test equipments.

Gear including planetary gear, spiral gear, bevel gear, spiral bevel gear, helical gear, spur gear, helical spur gear, conical gear, CHINAMFG pinion gear, conical CHINAMFG and bevel gear, worm gear and shaft, we can make standard thickness gear 1 to 8 Module, 1M12, 2M20, 2.5M25, 3M30, 4M40, 5M50, 6M60, 8M80. Non-standard thickness 2 to 8 Module: 2M16, 2.5M20, 3M20, 4M30, 4M35, 5M40, 5M30, 6M40, 6M50, 8M60. We can also make customized gear according to your drawing or sample.

Sprocket including simplex sprocket, duplex sprocket, triplex sprocket, and has 45 steel finished hole sprocket, 06B 06C 08A 08B 08C 10A 12A 16A 24A  sprocket and so on.We can also make customized gear according to your drawing or sample too.

Welcome you come to visit us for customized various types of non-standard gear, sprocket synchronous wheel, helical gear, bevel gear, shaft, worm gear and other products with the lowest quality! 

Application Field

Testing Ability

 

Dimensional Non-Destructive Tests(N.D.T.) Chemical & Mechanical
Surface Roughness Test Dye Penetrant Chemical analysis
Microscopic Measurement Radiography (RT) Metallography
3D ScHangZhou Magnetic Particle (MT) Tensile Strength
CMM Ultra-Sonic (UT) Yield Strength
Impact Test Hardness Test Elongation Rate
    Shrinkage Rate

Surface Treatment

FAQ

Q1:Are you manufactory or trade company?

A1:We are an enterprise integrating manufacturer and trade for many years already in ZheJiang province, China. And we are AAA grade credit enterprise, and also we have cooperative plants to provide other services such as plating and coating .

 

Q2: How could I get a free quotation?

A2:Please send us your drawings by Alibaba or email. The file format is PDF / DWG / STP / STEP / IGS and etc. IF there are no drawings, we can make the drawings according to your samples!

 

Q3:How to control quality?

A3:First, all raw materials are inspected by the quality control department before they are put into storage. Second, during the casting process, 3 times of spectral analysis were performed at the front, middle and back respectively. Third, after the parts are cleaned, perform a first visual inspection to check whether the product has casting defects before sending it to the next process. Fourth, conduct a comprehensive QC inspection of each part before shipment, including chemical composition, mechanical properties and other specific tests. Transactions can be through Alibaba’s trade assurance.
 

Q4:Can we have our Logo or company name to be printed on your products or package?
A4:Sure. Your Logo could be printed on your products by Hot Stamping, Printing, Embossing, UV Coating, Silk-screen Printing or Sticker.

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Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car
Hardness: Hardened Tooth Surface
Gear Position: External Gear
Samples:
US$ 5/Piece
1 Piece(Min.Order)

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Order Sample

Customization:
Available

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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 gear

What are the advantages and disadvantages of using helical gears?

Helical gears offer several advantages and disadvantages compared to other types of gears. It’s important to consider these factors when selecting the appropriate gear type for a specific application. Here’s a detailed overview of the advantages and disadvantages of using helical gears:

Advantages of Helical Gears:

  • Smooth and Quiet Operation: Helical gears operate with less noise and vibration compared to spur gears. The inclined tooth profile allows for gradual tooth engagement, resulting in smooth and quiet gear meshing. This advantage makes helical gears suitable for applications that require low noise levels and improved operator comfort.
  • High Load-Carrying Capacity: The inclined teeth of helical gears provide a larger contact area compared to other gear types. This increased contact area enables helical gears to handle higher loads and transmit greater torque without excessive wear or risk of tooth failure. Helical gears are known for their high load-carrying capacity, making them suitable for heavy-duty applications.
  • Efficient Power Transmission: Helical gears offer efficient power transmission due to their inclined tooth design. The gradual engagement of helical teeth reduces impact and shock loads, minimizing energy losses and improving overall system efficiency. This advantage makes helical gears suitable for applications where power efficiency is critical.
  • Higher Gear Ratios: Helical gears can achieve higher gear ratios compared to other gear types. This capability allows for more precise speed control and torque conversion in various applications. Helical gears are ideal for systems that require fine-tuning of rotational speed and torque output.
  • Compact Design: Helical gears have a compact design that allows for efficient use of space within a system. The inclined tooth profile enables multiple gear sets to be positioned on parallel or intersecting shafts, facilitating compact gear arrangements. This advantage is particularly useful in applications with space constraints.
  • Good Meshing Characteristics: Helical gears exhibit excellent meshing characteristics, including smooth gear engagement and minimal backlash. The inclined tooth profile ensures precise gear meshing, resulting in accurate motion control and reduced vibration. This advantage is desirable in applications that require precise positioning and synchronization of components.

Disadvantages of Helical Gears:

  • Axial Thrust: Helical gears generate an axial thrust force due to the helix angle of the teeth. This axial thrust must be properly supported to prevent axial movement of the gear shafts. Additional thrust bearings or thrust plates may be required, adding complexity and cost to the gear system design.
  • Complex Manufacturing: The manufacturing process of helical gears is more complex compared to spur gears. The inclined tooth profile requires specialized cutting tools and machinery to produce accurate helical gears. This complexity can result in higher manufacturing costs and longer lead times for custom gears.
  • Efficiency Reduction at High Speeds: Helical gears may experience a reduction in efficiency at high rotational speeds. This reduction is due to an increase in axial thrust forces, which generate additional friction and energy losses. Proper lubrication and design considerations are necessary to mitigate this efficiency reduction.
  • Thrust Load Sensitivity: Helical gears are sensitive to axial thrust loads. Uneven distribution of axial loads or improper alignment of gears can lead to increased wear and premature failure. Careful consideration of gear design, proper alignment, and adequate thrust load support are essential to ensure gear longevity and reliable operation.
  • Limited Ratios: Although helical gears can achieve higher gear ratios compared to spur gears, their range of available gear ratios is limited compared to other gear types, such as worm gears or bevel gears. If a very high or very low gear ratio is required for a specific application, other gear types may be more suitable.

Considering these advantages and disadvantages, engineers can make informed decisions when selecting helical gears for their specific applications. By carefully evaluating the requirements and constraints of the system, they can leverage the strengths of helical gears while mitigating any potential limitations.

helical gear

How do you address thermal expansion and contraction in a helical gear system?

Addressing thermal expansion and contraction in a helical gear system is crucial to ensure proper operation and prevent potential issues such as misalignment, increased backlash, or premature wear. Thermal expansion and contraction occur when temperature changes cause the gear components to expand or contract, affecting the gear meshing and overall performance. Here is a detailed explanation of how to address thermal expansion and contraction in a helical gear system:

  1. Material Selection: Choose materials for the gear components that have a similar coefficient of thermal expansion. Matching the coefficients of thermal expansion helps minimize the differential expansion and contraction between the gears, reducing the potential for misalignment or excessive clearance. Consult material suppliers or engineering references for guidance on selecting compatible materials.
  2. Design Considerations: Incorporate design features that account for thermal expansion and contraction. For example, provide adequate clearance between gear components to accommodate expansion without causing interference. Use proper tolerances and fits to allow for thermal variations. Consider incorporating expansion joints or flexible couplings in the system to absorb thermal movements and prevent stress concentrations.
  3. Operating Temperature Range: Determine the expected operating temperature range for the helical gear system. Consider the ambient temperature as well as any temperature fluctuations that may occur during operation. Understanding the temperature range helps in selecting appropriate materials and designing for thermal expansion and contraction effects.
  4. Lubrication: Proper lubrication is essential to address thermal expansion and contraction. Select lubricants that have good thermal stability and can maintain their viscosity within the expected temperature range. Lubricants with high thermal stability can help minimize the risk of viscosity changes, which can affect gear meshing characteristics and increase friction and wear.
  5. Preheating or Precooling: In some cases, preheating or precooling the gear components before assembly can help minimize the effects of thermal expansion and contraction. By bringing the components to a uniform temperature, the differential expansion can be reduced, resulting in better gear meshing alignment. However, this approach may not be suitable for all applications and should be evaluated based on the specific system requirements.
  6. Thermal Analysis and Simulation: Conduct thermal analysis and simulation of the helical gear system to evaluate the effects of temperature changes on gear performance. Finite element analysis (FEA) or specialized gear design software can be used to model the gear system and simulate thermal expansion and contraction. This analysis can provide insights into potential issues and guide design modifications or material selection.
  7. Monitoring and Maintenance: Regularly monitor the helical gear system for any signs of abnormal wear, noise, or misalignment. Implement a maintenance program that includes periodic inspections, lubricant analysis, and gear condition monitoring. Detecting early signs of thermal expansion- or contraction-related issues allows for timely corrective actions to be taken, minimizing the risk of equipment failure or reduced performance.

By considering these measures, it is possible to address thermal expansion and contraction in a helical gear system and ensure its reliable and efficient operation. Proper material selection, design considerations, lubrication, and monitoring contribute to minimizing the potential adverse effects of temperature variations on gear performance and extending the system’s lifespan.

helical gear

How do you choose the right size helical gear for your application?

Choosing the right size helical gear for your application involves considering several factors to ensure optimal performance and reliability. Here’s a detailed explanation of the steps involved in selecting the right size helical gear:

  1. Determine the Application Requirements: Start by understanding the specific requirements of your application. Consider factors such as the desired speed ratio, torque requirements, power transmission capacity, operating conditions (including temperature, lubrication, and environment), and any special considerations unique to your application.
  2. Calculate the Gear Parameters: Based on the application requirements, calculate the necessary gear parameters. These parameters include the pitch diameter, number of teeth, module or pitch, pressure angle, helix angle, face width, and center distance. These calculations can be performed using gear design formulas or software tools specifically designed for gear selection.
  3. Consider Load and Strength: Evaluate the load conditions that the helical gear will experience. Take into account factors such as the transmitted torque, radial loads, axial loads, and dynamic forces. Ensure that the selected gear can withstand the anticipated loads and provide sufficient strength and durability. Consider factors such as gear material, heat treatment, and tooth geometry to ensure adequate load-carrying capacity and resistance to wear and fatigue.
  4. Check Gear Meshing and Alignment: Proper gear meshing and alignment are crucial for smooth operation and efficient power transmission. Ensure that the selected gear size and tooth profile allow for proper meshing with the mating gear. Consider factors such as backlash, tooth contact pattern, and alignment tolerances to minimize noise, vibration, and wear. Proper alignment of shafts and bearings is also important for optimal gear performance.
  5. Consider Space Limitations: Evaluate the available space in your application for gear installation. Consider factors such as the gear diameter, length, and clearance requirements. Ensure that the selected gear size can fit within the available space without interfering with other components or causing installation challenges.
  6. Consult Manufacturer’s Guidelines: Refer to the manufacturer’s guidelines, catalogs, and technical documentation for the specific type and brand of helical gear you are considering. Manufacturers often provide recommendations, selection charts, and engineering support to assist in choosing the right size gear for different applications. It’s beneficial to leverage their expertise and knowledge.
  7. Consider Cost and Availability: Evaluate the cost and availability of the selected helical gear. Consider factors such as the gear’s price, lead time, availability of spare parts, and any additional costs associated with installation or maintenance. Balance your requirements with the available budget and ensure that the chosen gear offers a cost-effective solution without compromising performance or quality.

By following these steps and considering the application requirements, load conditions, gear parameters, meshing characteristics, space limitations, manufacturer’s guidelines, and cost factors, you can choose the right size helical gear that meets your specific application needs.

It’s important to note that gear selection can be a complex process, and it may be beneficial to consult with an experienced engineer or gear specialist to ensure an accurate and optimized gear sizing for your specific application.

China manufacturer Forged Hobbing Helical Spiral Bevel Gear/Helical Spur Gear for Sale supplier China manufacturer Forged Hobbing Helical Spiral Bevel Gear/Helical Spur Gear for Sale supplier
editor by CX 2024-04-08