China best Customized High Precision CNC Machining Stainless Steel Brass Gear Rack Helical Gear cycle gear

Product Description

QY Precision specializes in design and production of high precision metal parts and components.Focus on industry and action on demand, to be your trusted partner is our mission.

 

 

Services CNC Milling, CNC Turning, Wire EDM Cutting, 3D Printing,Vacuum Casting,Reaction Injection Molding, Plastic CNC Machining, Laser, Cutting, Stamping Parts, Bending Parts
Material Metal: Aluminum , Copper , Brass , Steel, Stainless Steel, Titanium and etc.
Plastic: ABS, POM, PP, PU, PC,PA66, PMMA, PVC, PVE, Nylon and etc.
Surface treatment Anodizing, Sandblasting, Metal Plating, Polishing, Painting, Powder coating, Brushing ,Silk-screen , Laser Engraving etc.
Heat treatment Annealing, Normalizing , Nitriding, Tempering
File Formats STP, STEP, IGS,STP,X_T ,DXF,DWG , Pro/E, PDF, SLDPRT
Inspection In-house or third party, all the products are strictly inspected by skilled QC
Service Type OEM & ODM Service

Customized High Precision CNC Machining Stainless Steel Brass Gear Rack Helical Gear

 

Gear Introduction


 

Bevel Gears

Bevel gears are most commonly used to transmit power between shafts that intersect at a 90 degree angle. They are used in applications where a right angle gear drive is required. Bevel gears are generally more costly and are not able to transmit as much torque, per size, as a parallel shaft arrangement.

Worm Gear

Worm gears transmit power through right angles on non-intersecting shafts. Worm gears produce thrust load and are good for high shock load applications but offer very low efficiency in comparison to the other gears. Due to this low efficiency, they are often used in lower horsepower applications.

Helical Gears

Helical gears have teeth that are oriented at an angle to the shaft, unlike spur gears which are parallel. This causes more than 1 tooth to be in contact during operation and helical gears can carry more load than spur gears. Due to the load sharing between teeth, this arrangement also allows helical gears to operate smoother and quieter than spur gears. Helical gears produce a thrust load during operation which needs to be considered when they are used. Most enclosed gear drives use helical gears.

Spur Gears

Spur gears transmit power through shafts that are parallel. The teeth of the spur gears are parallel to the shaft axis. This causes the gears to produce radial reaction loads on the shaft, but not axial loads. Spur gears tend to be noisier than helical gears because they operate with a single line of contact between teeth. While the teeth are rolling through mesh, they roll off of contact with 1 tooth and accelerate to contact with the next tooth. This is different than helical gears, which have more than 1 tooth in contact and transmit torque more smoothly.

Hypoid Gears

Hypoid gears look very much like a spiral bevel gear, but unlike spiral bevel gears, they operate on shafts which do not intersect. In the hypoid arrangement because the pinion is set on a different plane than the gear, the shafts are supported by the bearings on either end of the shaft.

Herringbone Gears

Herringbone gears are very similar to the double helical gear, but they do not have a gap separating the 2 helical faces. Herringbone gears are typically smaller than the comparable double helical and are ideally suited for high shock and vibration applications. Herringbone gearing is not used very often due to their manufacturing difficulties and high cost.

 

Why Choose QY Precision

FAQ

1.How to get a quote?
Kindly send us the drawing of your product,please. Including details as below: a.Materials b. Surface Finish c. Tolerance d. Quantity If you need solutions for your application, kindly send us your detail requirements, and we will have engineers to service you.

2.How does the payment process work?
Payment terms are flexible for us. We can accept different type payment way:

3.How do I know about the production?
We will double confirm your requirements and send you the sample before the mass production as you required. During the mass production,

4.How do I know about the delivery?
Before shipment we will confirm with you about all the details including CI and other attention issues. After ship out, we will inform you of the tracking number and keep updating the latest shipping information for you.

5.What will you do for after sales?
We will follow up and await your feedback. Any question related to our metal parts, our experienced engineers are ready to help. And welcome to contact for any supporting of your other application even if their is no relationship with our products.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Application: Fastener, Auto and Motorcycle Accessory, Hardware Tool, Machinery Accessory, Robotics
Standard: GB, EN, API650, China GB Code, JIS Code, TEMA, ASME, CE, FCC, RoHS, ISO9001:2008
Surface Treatment: Anodizing
Samples:
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helical gear

What lubrication is required for helical gears?

Proper lubrication is essential for the optimal performance and longevity of helical gears. The lubrication requirements for helical gears depend on factors such as the operating conditions, gear materials, and manufacturer recommendations. Here’s a detailed explanation of the lubrication considerations for helical gears:

  • Lubricant Selection: The choice of lubricant for helical gears should be based on factors such as operating temperature, load, speed, and environmental conditions. Commonly used lubricants for helical gears include mineral oils, synthetic oils, and greases. Consult the gear manufacturer’s specifications or industry standards to determine the appropriate lubricant viscosity and type for your specific application.
  • Viscosity: The lubricant viscosity is an important parameter that influences the lubricating film thickness and the ability to separate the gear surfaces. The viscosity should be selected based on the operating conditions, taking into account factors such as temperature, speed, and load. Higher viscosity lubricants are typically used for heavy-duty applications or high-temperature environments, while lower viscosity lubricants may be suitable for lighter loads or lower speeds.
  • Extreme Pressure (EP) Additives: Helical gears, especially those operating under high loads or with high sliding velocities, may benefit from lubricants containing extreme pressure (EP) additives. EP additives help to reduce friction and wear by forming a protective film on the gear surfaces, preventing metal-to-metal contact and minimizing the risk of scuffing or scoring. EP additives are particularly important for helical gears in industrial machinery, automotive transmissions, and gearboxes.
  • Lubrication Method: The lubrication method for helical gears can vary depending on the gear design and application. Common methods include splash lubrication, oil bath lubrication, forced circulation systems, and oil mist lubrication. The lubrication method should ensure that an adequate amount of lubricant reaches the gear mesh to provide proper lubrication, cooling, and debris removal during operation.
  • Frequency of Lubrication: Regular lubrication maintenance is crucial for helical gears. The lubrication intervals should be determined based on factors such as the gear operating conditions, lubricant type, and gear manufacturer recommendations. Periodic inspections should be conducted to monitor the lubricant condition, check for contamination or degradation, and replenish or replace the lubricant as needed.
  • Proper Lubricant Application: When applying the lubricant to helical gears, ensure that the gear teeth and bearings are adequately coated. Pay attention to reaching areas of high friction and contact, such as the gear mesh and tooth roots. Follow the gear manufacturer’s recommendations or guidelines for the proper lubrication technique, which may involve methods such as oil bath immersion, drip lubrication, or centralized lubrication systems.
  • Contamination Control: Contamination can significantly affect the performance and lifespan of helical gears. Take measures to prevent the ingress of contaminants such as dirt, dust, moisture, and metal particles into the gear system. Use proper sealing arrangements, filtration systems, and regular maintenance practices to maintain a clean and contamination-free lubrication environment.

It is important to note that the lubrication requirements may vary depending on specific gear designs, materials, and operating conditions. Always refer to the gear manufacturer’s recommendations, industry standards, and consult with lubrication experts or engineers to determine the most suitable lubrication approach for your helical gear application.

helical gear

How do you retrofit an existing mechanical system with helical gears?

Retrofitting an existing mechanical system with helical gears involves replacing the current gear system with helical gears to improve performance, efficiency, or address specific requirements. The process requires careful planning, analysis, and implementation to ensure a successful retrofit. Here is a detailed explanation of how to retrofit an existing mechanical system with helical gears:

  1. Assess the Existing System: Begin by thoroughly assessing the existing mechanical system. Understand its design, operating conditions, gear specifications, and performance limitations. Identify the reasons for retrofitting, such as the need for increased load capacity, improved efficiency, noise reduction, or other specific requirements.
  2. Define Retrofit Objectives: Clearly define the objectives of the retrofit. Determine the specific improvements or modifications desired from the retrofit. This could include increasing torque capacity, reducing backlash, improving gear meshing characteristics, or optimizing gear ratios. Having well-defined objectives will guide the retrofitting process.
  3. Perform Gear Design and Analysis: Based on the defined objectives, conduct gear design and analysis to determine the appropriate helical gear configuration. Consider factors such as gear size, tooth profile, helix angle, module or diametral pitch, and gear material. Use engineering calculations, software simulations, or consult with gear design experts to ensure the selected helical gears meet the retrofit objectives and are compatible with the existing system.
  4. Modify Gear Housing and Mounting: In some cases, retrofitting with helical gears may require modifications to the gear housing or mounting arrangements. Ensure that the gear housing can accommodate the helical gears and provide proper alignment and support. Modify or adapt the housing as necessary to ensure a precise fit and alignment of the new gear system.
  5. Manufacture or Source Helical Gears: Once the gear design is finalized, manufacture or source the helical gears according to the specifications determined during the design phase. Work with experienced gear manufacturers or suppliers who can provide high-quality helical gears that meet the required specifications and performance criteria.
  6. Installation and Alignment: Remove the existing gears and install the helical gears in the mechanical system. Ensure proper alignment of the gears to maintain smooth operation and minimize wear. Follow recommended installation procedures and torque specifications provided by the gear manufacturer. Consider using alignment tools, such as dial indicators or laser alignment systems, to achieve precise gear alignment.
  7. Test and Fine-tune: After installation, conduct thorough testing of the retrofit system. Monitor performance, check for any abnormal vibrations, noise, or operating issues. Fine-tune the system as needed, making adjustments to gear meshing, lubrication, or other parameters to optimize performance and ensure the retrofit objectives are met.
  8. Monitor and Maintain: Once the retrofit is complete, establish a regular monitoring and maintenance schedule. Periodically inspect the helical gears for wear, perform lubrication checks, and address any maintenance requirements. Regular monitoring and maintenance will help ensure the longevity and optimal performance of the retrofit system.

Retrofitting an existing mechanical system with helical gears can significantly enhance its performance, efficiency, and reliability. However, it is essential to carefully plan and execute the retrofitting process to achieve the desired outcomes. Consulting with gear design experts and experienced professionals can provide valuable guidance and expertise throughout the retrofitting process.

helical gear

Are there different types of helical gears available?

Yes, there are different types of helical gears available to meet specific application requirements. Here’s a detailed explanation of some common types of helical gears:

  1. Parallel Helical Gears: Parallel helical gears are the most commonly used type of helical gears. In this configuration, two helical gears with parallel axes are meshed together. They transmit power and motion between parallel shafts. Parallel helical gears provide smooth operation, high load-carrying capacity, and efficient power transmission.
  2. Double Helical Gears (Herringbone Gears): Double helical gears, also known as herringbone gears, have two sets of helical teeth that are placed in a V-shaped configuration. The V-shaped teeth face each other, with a groove or gap in the middle. This design cancels out the axial thrust that is generated by the helical gear’s inclined teeth. Double helical gears are often used in applications that require high torque transmission and axial load balancing, such as heavy machinery and marine propulsion systems.
  3. Crossed Helical Gears (Screw Gears): Crossed helical gears, also referred to as screw gears, involve the meshing of two helical gears with non-parallel and non-intersecting axes. The gears are oriented at an angle to each other, typically 90 degrees. Crossed helical gears are used in applications where shafts intersect or when a compact and non-parallel gear arrangement is required. They are commonly found in hand drills, speedometers, and some mechanical watches.
  4. Skew Gears: Skew gears are a type of helical gear in which the gear teeth are cut at an angle to the gear axis. The angle of the teeth can vary, allowing for different degrees of skew. Skew gears are used in applications where the axes of the mating gears are neither parallel nor intersecting. They can transmit power between non-parallel and non-intersecting shafts while accommodating misalignments.
  5. Helical Rack and Pinion: A helical rack and pinion system consists of a helical gear (pinion) that meshes with a linear gear (rack). The pinion is a cylindrical gear with helical teeth, while the rack is a straight bar with teeth that mesh with the pinion. This configuration is commonly used in applications that require linear motion, such as CNC machines, robotics, and rack and pinion steering systems in automobiles.
  6. Variable Helix Gears: Variable helix gears have a unique tooth profile where the helix angle varies along the face width of the gear. The varying helix angle helps to reduce noise, vibration, and backlash while maintaining smooth operation and load distribution. These gears are often used in high-performance applications where noise reduction and precise motion control are critical.

The specific type of helical gear used depends on factors such as the application requirements, load conditions, space limitations, and desired performance characteristics. Manufacturers often provide various options and customizations to meet specific needs.

It’s important to note that the design and manufacturing of helical gears require careful consideration of factors such as tooth profile, helix angle, lead angle, module or pitch, pressure angle, and material selection. These factors ensure proper gear meshing, load distribution, and efficient power transmission.

In summary, different types of helical gears, including parallel helical gears, double helical gears (herringbone gears), crossed helical gears (screw gears), skew gears, helical rack and pinion systems, and variable helix gears, are available to cater to a wide range of applications. Each type has its unique characteristics and advantages, allowing for optimized performance and reliable power transmission in various industries and machinery.

China best Customized High Precision CNC Machining Stainless Steel Brass Gear Rack Helical Gear cycle gearChina best Customized High Precision CNC Machining Stainless Steel Brass Gear Rack Helical Gear cycle gear
editor by CX 2023-10-18