China best 29t 30t 31t 32t 33t 34t 35t 36t M1 Mod1 Pinion Gear Chromium Alloy Steel 8.0mm Bore for 1/5 RC Car. W/Screw supplier

Product Description


Made of high quality metal material

Exquisite workmanship and durable in use

M1 motor gears for 1/5 RC Crawler Car 



Material: Metal

Quantity: 1Pcs

For motor shaft diameter: 8.0mm
M5 crew hole
M1 8.0 hole gear is made of 45 steel (also known as 1m in China), all inner holes are positive tolerance 0 – positive 0.03, and M5 fixed screw holes
Easy installation and long service life
Hard anodizing of gear surface
Antirust treatment of gear surface
8mm shaft brushless motor for 1 / 5 RC model car
T-number can be combined arbitrarily.
Each gear is equipped with a machine screw and packaged with transparent belt,

Gear Tooth: 13T/14T/15T/16T/17T/18T/19T/20T/21T/22T/23T/24T/25T/26T/27T/28T/29T/30T/31T/32T/33T/34T/35T/36T/37T/38T/39T/40T/41T/42T/43T/44T/45T/46T/47T/48T/49T/OEM(MOQ is 100pcs)/ODM(MOQ is 200pcs).

Package List:

1 * M1 Motor Gear    or  10* M1 Motor Gear  or other

No item No. Description Specification    
1 11571-6003-02 M1 8.0 13T  HRC42-38 M1 13T ¢8*¢15*14mm 
2 11571-6004-02 M1 8.0 14T  HRC42-38 M1 14T ¢8*¢16*14mm 
3 11571-6005-02 M1 8.0 15T  HRC42-38 M1 15T ¢8*¢17*14mm 
6 11571-6006-02 M1 8.0 16T  HRC42-38 M1 16T ¢8*¢18*14mm 
7 11571-6007-02 M1 8.0 17T  HRC42-38 M1 17T ¢8*¢19*14mm 
8 11571-6008-02 M1 8.0 18T  HRC42-38 M1 18T ¢8*¢20*14mm 
9 11571-6009-02 M1 8.0 19T  HRC42-38 M1 19T ¢8*¢21*14mm 
10 11571-6571-02 M1 8.0 20T  HRC42-38 M1 20T ¢8*¢22*14mm 
11 11571-6011-02 M1 8.0 21T  HRC42-38 M1 21T ¢8*¢23*14mm 
12 11571-6012-02 M1 8.0 22T  HRC42-38 M1 22T ¢8*¢24*14mm 
13 11571-6013-02 M1 8.0 23T  HRC42-38 M1 23T ¢8*¢25*14mm 
14 11571-6014-02 M1 8.0 24T  HRC42-38 M1 24T ¢8*¢26*14mm 
15 11571-6015-02 M1 8.0 25T  HRC42-38 M1 25T ¢8*¢27*14mm 
16 11571-6016-02 M1 8.0 26T  HRC42-38 M1 26T ¢8*¢28*14mm 
17 11571-6017-02 M1 8.0 27T  HRC42-38 M1 27T ¢8*¢29*14mm 
18 11571-6018-02 M1 8.0 28T  HRC42-38 M1 28T ¢8*¢30*14mm 
19 11571-6019-02 M1 8.0 29T  HRC42-38 M1 29T ¢8*¢31*14mm 
20 11571-6571-02 M1 8.0 30T  HRC42-38 M1 30T ¢8*¢32*14mm 
21 11571-6571-02 M1 8.0 31T  HRC42-38 M1 31T ¢8*¢33*14mm 
22 11571-6571-02 M1 8.0 32T  HRC42-38 M1 32T ¢8*¢34*14mm 
23 11571-6571-02 M1 8.0 33T  HRC42-38 M1 33T ¢8*¢35*14mm 
24 11571-6571-02 M1 8.0 34T  HRC42-38 M1 34T ¢8*¢36*14mm 
25 11571-6571-02 M1 8.0 35T  HRC42-38 M1 35T ¢8*¢37*14mm 
26 11571-6026-02 M1 8.0 36T  HRC42-38 M1 36T ¢8*¢38*14mm 
27 11571-6571-02 M1 8.0 37T  HRC42-38 M1 37T ¢8*¢39*14mm 
28 11571-6571-02 M1 8.0 38T  HRC42-38 M1 38T ¢8*¢40*14mm 
29 11571-6571-02 M1 8.0 39T  HRC42-38 M1 39T ¢8*¢41*14mm 
30 11571-6030-02 M1 8.0 40T  HRC42-38 M1 40T ¢8*¢42*14mm 
31 11571-6031-02 M1 8.0 41T  HRC42-38 M1 41T ¢8*¢43*14mm 
32 11571-6032-02 M1 8.0 42T  HRC42-38 M1 42T ¢8*¢44*14mm 
33 11571-6033-02 M1 8.0 43T  HRC42-38 M1 43T ¢8*¢45*14mm 
34 11571-6034-02 M1 8.0 44T  HRC42-38 M1 44T ¢8*¢46*14mm 
35 11571-6035-02 M1 8.0 45T  HRC42-38 M1 45T ¢8*¢47*14mm 
36 11571-6036-02 M1 8.0 46T  HRC42-38 M1 46T ¢8*¢48*14mm 
37 11571-6037-02 M1 8.0 47T  HRC42-38 M1 47T ¢8*¢49*14mm 
38 11571-6038-02 M1 8.0 48T  HRC42-38 M1 48T ¢8*¢50*14mm 
39 11571-6039-02 M1 8.0 49T  HRC42-38 M1 49T ¢8*¢51*14mm 

Shipping Cost:

Estimated freight per unit.

To be negotiated
Plastic Cement: Na
Hardware: Ring
Type: Electronic Accessories
US$ 5/Piece
1 Piece(Min.Order)


Order Sample



Customized Request

screw gear

What is the purpose of using screw gears in machinery?

Screw gears, also known as worm gears, serve various purposes in machinery and mechanical systems. They offer unique advantages that make them suitable for specific applications. Here’s a detailed explanation of the purposes and benefits of using screw gears:

  • High Gear Reduction: One of the primary purposes of using screw gears is to achieve high gear reduction. Screw gears provide a significant reduction ratio, allowing for the conversion of high-speed, low-torque input to low-speed, high-torque output. This makes them ideal for applications that require precise control over torque and rotational speed, such as lifting heavy loads, positioning systems, and machinery with high torque requirements.
  • Precise Positioning: Screw gears enable precise positioning and control of linear or rotary motion. The fine-pitch threads on the worm and the corresponding worm wheel teeth allow for accurate and controlled motion. This feature makes screw gears suitable for applications that require precise positioning, such as robotics, automation, and machinery that performs intricate movements or adjustments.
  • Self-Locking: Screw gears have a self-locking property, which means that the gear mechanism remains fixed in position even when no external force is applied. The friction between the screw threads and the worm wheel prevents the system from backdriving or rotating unintentionally. This self-locking feature eliminates the need for additional braking mechanisms or external locks, making screw gears advantageous in applications where holding a position is essential for safety and stability.
  • Compact Design: Screw gears have a compact design that makes them suitable for applications with limited space. The worm and worm wheel arrangement allows for efficient power transmission in a compact layout, enabling the integration of screw gears in machinery and systems where space is a constraint. This compact design also simplifies installation and reduces the overall footprint of the equipment.
  • Quiet and Smooth Operation: Screw gears operate with reduced noise and vibration compared to other gear types. The helical nature of the threads and the sliding/rolling contact between the worm and worm wheel result in a smooth and gradual meshing motion. This smooth operation contributes to quieter machinery, making screw gears desirable in applications where noise reduction is important, such as in residential environments, audio equipment, and precision instruments.
  • High Shock Load Resistance: Screw gears are known for their ability to handle shock loads effectively. The helical shape of the threads and the larger contact area between the worm and the worm wheel distribute the load more evenly, reducing the risk of sudden failures or damage due to shock or impact loads. This shock load resistance makes screw gears suitable for applications that involve sudden changes in load or external forces.
  • Reliability and Durability: Screw gears are recognized for their reliability and durability. The simplicity of their design, with fewer moving parts, reduces the likelihood of mechanical failures. Additionally, the self-locking feature minimizes the chances of unwanted movement or slippage. When properly lubricated and maintained, screw gears can have a long service life and require minimal maintenance, contributing to the overall reliability of machinery.
  • Wide Range of Applications: Screw gears find application in various industries and machinery types. They are utilized in manufacturing equipment, robotics, medical devices, automotive systems, elevators, material handling machinery, and many other systems that require precise control, high torque, compactness, and reliable power transmission.

The purpose of using screw gears in machinery is to provide efficient power transmission, precise positioning, high torque multiplication, self-locking capabilities, and reliable operation. These features make screw gears a valuable component in numerous applications, enhancing performance, safety, and overall functionality of machinery and mechanical systems.

screw gear

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

Addressing thermal expansion and contraction in a screw gear system is crucial to ensure the proper functioning and longevity of the system. Thermal expansion and contraction occur when a system is subjected to temperature changes, leading to dimensional changes in the components. Here’s a detailed explanation of how to address thermal expansion and contraction in a screw gear system:

  1. Material Selection: Choose materials for the screw gear system components that have compatible coefficients of thermal expansion (CTE). Using materials with similar CTE can help minimize the differential expansion and contraction between the components, reducing the potential for misalignment or excessive stress. Consider materials such as steel, bronze, or other alloys that exhibit good dimensional stability over the expected operating temperature range.
  2. Design for Clearance: Incorporate proper clearances and tolerances in the design of the screw gear system to accommodate thermal expansion and contraction. Allow for sufficient clearance between mating components to accommodate the expected dimensional changes due to temperature variations. This can prevent binding, excessive friction, or damage to the gears during temperature fluctuations.
  3. Lubrication: Utilize appropriate lubrication in the screw gear system to mitigate the effects of thermal expansion and contraction. Lubricants can help reduce friction, dissipate heat, and provide a protective film between the mating surfaces. Select lubricants that offer good thermal stability and maintain their properties across the expected temperature range of the system.
  4. Thermal Insulation: Implement thermal insulation measures to minimize the exposure of the screw gear system to rapid temperature changes. Insulating the system from external heat sources or environmental temperature fluctuations can help reduce the thermal stresses and minimize the effects of expansion and contraction. Consider using insulating materials or enclosures to create a more stable temperature environment around the screw gear system.
  5. Temperature Compensation Mechanisms: In certain applications, it may be necessary to incorporate temperature compensation mechanisms into the screw gear system. These mechanisms can actively or passively adjust the position or clearance between components to compensate for thermal expansion or contraction. Examples include thermal expansion compensation screws, bimetallic elements, or other devices that can accommodate dimensional changes and maintain proper alignment under varying temperatures.
  6. Operational Considerations: Take into account the thermal characteristics of the environment and the operational conditions when using a screw gear system. If the system is expected to experience significant temperature variations, ensure that the operating parameters, such as load capacities and operating speeds, are within the design limits of the system under the anticipated temperature range. Monitor and control the temperature of the system if necessary to minimize the effects of thermal expansion and contraction.
  7. System Testing and Analysis: Conduct thorough testing and analysis of the screw gear system under various temperature conditions to assess its performance and behavior. This can involve measuring dimensional changes, analyzing gear meshing characteristics, and evaluating the system’s ability to maintain proper alignment and functionality. Use the test results to validate the design, make any necessary adjustments, and optimize the system’s performance under thermal expansion and contraction effects.
  8. Maintenance and Inspection: Establish a regular maintenance and inspection routine for the screw gear system to monitor its performance and address any issues related to thermal expansion and contraction. This can involve checking clearances, lubrication levels, and the overall condition of the system. Promptly address any signs of excessive wear, misalignment, or abnormal operation that may be attributed to temperature-related effects.

By considering material selection, design clearances, lubrication, thermal insulation, temperature compensation mechanisms, operational considerations, and regular maintenance, it is possible to effectively address thermal expansion and contraction in a screw gear system. These measures help ensure the system’s reliability, minimize wear and damage, and maintain the desired performance and functionality over a range of operating temperatures.

screw gear

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

Choosing the right size screw gear for your application involves considering several factors to ensure optimal performance and compatibility. Here are the key steps to follow when selecting a screw gear:

  1. Determine the Application Requirements: Start by understanding the specific requirements of your application. Consider factors such as the desired gear reduction ratio, torque requirements, rotational speed, load capacity, and precision positioning needs. Having a clear understanding of your application’s requirements will help guide the selection process.
  2. Calculate the Gear Ratio: Determine the required gear reduction ratio by considering the speed and torque specifications of your application. The gear reduction ratio is calculated by dividing the input speed by the output speed. This ratio will help narrow down the options for suitable screw gears.
  3. Evaluate Load Capacity: Assess the load capacity requirements of your application. Consider the maximum load that the screw gear needs to handle. This includes both the static load (the load when the system is at rest) and the dynamic load (the load during operation). Ensure that the selected screw gear can handle the anticipated loads without experiencing excessive wear or failure.
  4. Consider Torque Requirements: Determine the required torque output of the screw gear to meet the demands of your application. Calculate the torque by multiplying the load torque by the gear reduction ratio. Ensure that the selected screw gear can provide the necessary torque output to drive the load effectively.
  5. Analyze Speed and Efficiency: Evaluate the desired rotational speed and efficiency of the screw gear system. Consider the input speed, output speed, and efficiency requirements of your application. Ensure that the selected screw gear can operate within the desired speed range while maintaining the required efficiency levels.
  6. Check Mounting and Space Constraints: Assess the available space and mounting requirements in your application. Consider factors such as the required size, shape, and mounting configuration of the screw gear. Ensure that the selected screw gear can be properly installed and integrated into your application without any space or mounting constraints.
  7. Consider Material and Lubrication: Evaluate the environmental conditions and operating parameters of your application. Consider factors such as temperature, humidity, exposure to contaminants, and the need for corrosion resistance. Select a screw gear made from materials suitable for the application environment. Additionally, consider the lubrication requirements and ensure that the selected screw gear can be adequately lubricated for smooth operation and reduced wear.
  8. Consult Manufacturers and Suppliers: Seek advice and consult with manufacturers or suppliers of screw gears. They can provide valuable insights and recommendations based on their expertise and product knowledge. Provide them with the specific details of your application requirements for better guidance in selecting the appropriate screw gear.

By following these steps and considering the factors mentioned, you can choose the right size screw gear that matches the requirements of your application. It is crucial to ensure that the selected screw gear can handle the load, provide the necessary torque and speed, fit within the available space, and operate effectively in the application environment.

China best 29t 30t 31t 32t 33t 34t 35t 36t M1 Mod1 Pinion Gear Chromium Alloy Steel 8.0mm Bore for 1/5 RC Car. W/Screw supplier China best 29t 30t 31t 32t 33t 34t 35t 36t M1 Mod1 Pinion Gear Chromium Alloy Steel 8.0mm Bore for 1/5 RC Car. W/Screw supplier
editor by CX 2023-09-22


screw gears

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