China manufacturer Custom Plastic Gears for Toys Cheap Bevel Gear gear ratio calculator

Product Description

custom plastic gears for toys cheap bevel gear


Nylon PA6 Sheets & Rods that made the with 100% Virgin Raw Material by HangZhou Engineering Plastics Industries (Group) Company, has the best performance, such as: very tough, even at low temperatures, and high hardness in the surface, toughness, mechanical lower shock, and abrasion resistance. Combined with these characteristics and good insulation, and chemical properties, it has become common-level materials.
 Its widely used in a variety of mechanical structures and spare parts. Nylon PA6 products that made by HangZhou Engineering Plastics Industries (Group) Company, has the higher hardness, rigidity, a good resistance to wear and heat deflection temperature. 


1. Good Tensile strength;

2. High impact and notching impact strength;

3. High heat deflection temperature ;

4. High strength and stiffness;

5. Good glide and limp home characters;

6. Good chemical stability against organic solvents and fuels;

7. Resistant to thermal aging (applicable temperature between -50°C and 110°C;

8. Size alternation by humidity absorption must be considered;




1. Nylon PA6 Products that made by HangZhou Engineering Plastics Industries (Group) Company is widely substituted for wear parts of mechanical equipment, or used as quick-wear parts of equipment instead of copper and alloy;

2. Shaft sleeve, bearing bush, lining, lining plate, gear;

3. Worm gear, roller copper guide rail, piston ring, seal ring, slide block;

4. Spheric bowl, impeller, blade, cam, nut, valve plate,

5. Pipe, stuffing box, rack, belt pulley, pump rotor, etc.


Main Properties of  Nylon 

Property Item No. Unit MC Nylon (Natural) Oil Nylon+Carbon     (Black) Oil Nylon (Green) MC901 (Blue) MC Nylon+MSO2 (Light black)
Mechanical Properties 1 Density g/cm3 1.15 1.15 1.135    1.15 1.16
2          Water absorption (23ºC in air) % 1.8-2.0     1.8-2.0 2 2.3 2.4
3 Tensile strength MPa 89 75.3     70     81       78
4 Tensile strain at break % 29 22.7 25 35       25
5 Compressive stress(at 2%nominal strain) MPa 51 51 43 47 49
6 Charpy impact strength (unnotched) KJ/m2 No break No break ≥50 No BK No break
7 Charpy impact strength (notched) KJ/m2 ≥5.7 ≥6.4 4 3.5 3.5
8 Tensile modulus of elasticity MPa 3190 3130 3000 3200 3300
9 Ball indentation hardness N/mm2 164 150 145 160 160
  10 Rockwell hardness M88 M87 M82 M85 M84


Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car, Domestic Appliances
Hardness: Hardened Tooth Surface
Gear Position: External Gear
Manufacturing Method: Cut Gear
Toothed Portion Shape: Bevel Wheel
Material: Nylon


Customized Request

bevel gear

How do you prevent backlash and gear play in a bevel gear mechanism?

In a bevel gear mechanism, preventing backlash and gear play is essential for ensuring accurate and efficient power transmission. Backlash refers to the clearance or free movement between the mating teeth of gears, resulting in a brief loss of motion or a dead zone when changing direction. Here are some methods to prevent backlash and minimize gear play in a bevel gear mechanism:

  • Precision Manufacturing: High-precision manufacturing processes are crucial for minimizing backlash and gear play in bevel gears. Accurate machining of gear teeth and precise control of tooth dimensions, profiles, and alignment help achieve tight meshing between the gears, reducing the clearance and backlash. Modern manufacturing techniques, such as CNC machining and gear grinding, can ensure the desired level of precision and minimize gear play.
  • Proper Gear Design: The design of the bevel gears can influence the amount of backlash and gear play. An optimized gear design, including suitable tooth profiles, pressure angles, and tooth contact patterns, can help distribute the load evenly and minimize the clearance between the mating teeth. By carefully considering gear design parameters, designers can reduce backlash and improve gear meshing characteristics.
  • Preload or Pre-Tension: Applying a preload or pre-tension to the bevel gears can help minimize backlash and gear play. This involves applying a slight force or tension to the gears, forcing them to maintain contact and reducing the clearance between the teeth. Preload can be achieved through various methods, such as using spring mechanisms, shimming, or adjusting the mounting position of the gears.
  • Backlash Compensation: Backlash compensation methods aim to minimize the effects of backlash and gear play by introducing mechanisms or techniques that compensate for the clearance. One common approach is to use anti-backlash gears, which have special tooth profiles or arrangements that reduce or eliminate clearance between the mating teeth. Another method is to incorporate backlash compensation devices, such as spring-loaded mechanisms or adjustable shims, that actively reduce the backlash during operation.
  • Tight Control of Tolerances: Maintaining tight tolerances during the manufacturing and assembly processes is critical for minimizing backlash and gear play. Close control of dimensions, alignment, and clearances ensures proper gear meshing and reduces the possibility of excessive play. Quality control measures, such as inspection, testing, and verification of gear dimensions, can help ensure that the gears meet the specified tolerances.
  • Regular Maintenance: Regular maintenance practices, including inspection, lubrication, and adjustment, are essential for preventing and minimizing backlash and gear play over time. Periodic checks for wear, misalignment, and proper lubrication can help identify and rectify any issues that may contribute to increased backlash. Timely maintenance and replacement of worn or damaged gears can help maintain optimal gear meshing and minimize play.

By implementing these methods, it is possible to significantly reduce backlash and gear play in a bevel gear mechanism, resulting in improved accuracy, efficiency, and longevity of the gear system.

bevel gear

How do you ensure proper alignment when connecting a bevel gear?

Proper alignment is crucial when connecting a bevel gear to ensure efficient power transmission, smooth operation, and longevity of the gear system. Here’s a detailed explanation of how to ensure proper alignment:

When connecting a bevel gear, the following steps can help ensure proper alignment:

  • Check Gear Specifications: Begin by reviewing the gear specifications provided by the manufacturer. This includes information about the gear’s design, tolerances, and alignment requirements. Understanding these specifications is essential for achieving the desired alignment.
  • Prepare Mounting Surfaces: Ensure that the mounting surfaces for the gears, such as shafts or gearboxes, are clean, free from debris, and properly prepared. Any irregularities or surface defects can affect the alignment and lead to misalignment issues. Remove any burrs, nicks, or rough spots that could interfere with the proper seating of the gears.
  • Use Alignment Tools: Alignment tools, such as dial indicators or laser alignment systems, can be helpful in achieving precise alignment. These tools allow for accurate measurement and adjustment of the gear’s position relative to the mating components. Follow the instructions provided with the alignment tools to set up and perform the alignment process correctly.
  • Axial Alignment: Achieving proper axial alignment is crucial for bevel gears. The axial alignment refers to aligning the gear’s rotational axis parallel to the mating gear’s rotational axis. This ensures proper gear meshing and load distribution. Use alignment tools to measure and adjust the axial alignment, making necessary modifications to the gear’s position or shimming as required.
  • Radial Alignment: Radial alignment involves aligning the gear’s rotational axis perpendicular to the mating gear’s rotational axis. Proper radial alignment helps prevent side loads, excessive wear, and noise generation. Use alignment tools to measure and adjust the radial alignment, ensuring that the gear’s position is properly adjusted or shimmed to achieve the desired alignment.
  • Verify Tooth Contact Pattern: After aligning the gears, it is important to verify the tooth contact pattern. The tooth contact pattern should be evenly distributed across the gear tooth surfaces to ensure proper load sharing and minimize wear. Conduct a visual inspection or use specialized tools, such as gear marking compounds, to check and adjust the tooth contact pattern if necessary.

By following these steps and using appropriate alignment tools, you can ensure proper alignment when connecting a bevel gear. Proper alignment promotes efficient power transmission, minimizes wear, reduces noise, and extends the lifespan of the gear system.

It is worth noting that each gear system may have specific alignment requirements and considerations. Consult the gear manufacturer’s guidelines and best practices, as well as seek the expertise of experienced engineers, to ensure the proper alignment of bevel gears in your specific application.

bevel gear

What is a bevel gear and how does it work?

A bevel gear is a type of gear that has teeth cut on the cone-shaped surface of the gear. It is used to transmit rotational motion and power between two intersecting shafts. Here’s a detailed explanation of what a bevel gear is and how it works:

A bevel gear consists of two cone-shaped gears with intersecting axes. The gear teeth are cut on the tapered surface of the gears. The gear with the smaller diameter is called the pinion, while the gear with the larger diameter is called the crown gear or ring gear.

Bevel gears are classified into different types based on their tooth geometry and arrangement. The most common types are straight bevel gears, spiral bevel gears, and hypoid bevel gears. Straight bevel gears have straight-cut teeth and intersect at a 90-degree angle. Spiral bevel gears have curved teeth that are gradually cut along the gear surface, allowing for smoother engagement and reduced noise. Hypoid bevel gears have offset axes and are used when the intersecting shafts are non-parallel.

When two bevel gears mesh together, the rotational motion from one gear is transmitted to the other gear. The gear teeth engage and disengage as the gears rotate, transferring torque and power between the shafts.

The operation of bevel gears is similar to that of other types of gears. When the pinion gear rotates, it causes the crown gear to rotate in the opposite direction. The direction of rotation can be reversed by changing the orientation of the gears. Bevel gears can provide different speed ratios and torque conversions depending on the gear sizes and the number of teeth.

The key characteristics of bevel gears include:

  • Transmission of motion: Bevel gears are used to transmit rotational motion between intersecting shafts, allowing for changes in direction and speed.
  • Torque transfer: Bevel gears can transmit torque from one shaft to another, allowing for power transmission in various mechanical systems.
  • Axial thrust: Due to the angled tooth arrangement, bevel gears generate axial thrust forces that need to be properly supported or accounted for in the design of the mechanical system.
  • Efficiency and noise: The efficiency and noise characteristics of bevel gears depend on factors such as tooth design, lubrication, and manufacturing quality.

Bevel gears are commonly used in a wide range of applications, including automotive differentials, power tools, printing presses, machine tools, and marine propulsion systems. Their ability to transmit motion and torque at intersecting angles makes them versatile and suitable for various mechanical systems.

In summary, a bevel gear is a cone-shaped gear that transmits rotational motion and power between intersecting shafts. It works by meshing the gear teeth of two gears, allowing for the transfer of torque and rotational motion. Bevel gears are available in different types and are used in various applications that require changes in direction or speed of rotational motion.

China manufacturer Custom Plastic Gears for Toys Cheap Bevel Gear gear ratio calculatorChina manufacturer Custom Plastic Gears for Toys Cheap Bevel Gear gear ratio calculator
editor by CX 2023-09-23