Plastic Spur Gears M3, M4, M5, M6

As one of the plastic spur gears manufacturers, suppliers, and exporters of mechanical products, We offer plastic spur gears and many other products.

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Manufacturer supplier exporter of plastic spur gears.

Plastic Spur Gears M3, M4, M5, M6

Plastic spur gears have a long history in autos, appliances, office equipment, tools, etc. Designers continue to extend their use in transferring torque and motion as polymers improve and processing gains in sophistication. They often choose plastic for gears over metal because of its many benefits.

Ingenious design, a good product is enough for a lifetime, strong bearing quality products, high-quality craftsmanship quality products smooth operation quality products, thick material quality products.

Plastic Spur Gears Descriptions:

(1) According to the different strengths and performance, we choose the plastic with firm compression;
(2) Using German professional software and our professional engineers to design products with more reasonable sizes and better performance;
(3) We can customize our products according to the needs of our customers. Therefore, the optimal performance of the gear can be exerted under different working conditions;
(4) Quality assurance in every step to ensure product quality is controllable.

Plastic Spur Gears Design Details:

Gear Face Width

The face width of a gear tooth is the width of the top of the tooth parallel to the shaft of the tooth. With the increase of the width of gear tooth surface, the gear obtains greater bending and surface strength.

The face width of the gear must be less than the space it fits into the other gear. This condition is called effective face width. The face width should not be confused with the face of the gear teeth, which is the surface above the pitch surface. It should be remembered that the face width is the space fit between the top of one gear tooth and another gear tooth.

Gear Module

The size of plastic spur gears is expressed in terms of their modulus. It represents the size of the gear. The modulus is the ratio of the diameter divided by the number of gears. When selecting gears, the module and the number of teeth determine the selected gear.

Pressure Angle

The pressure Angle of the gear is determined by two tangents that intersect the inner circle of the gear and the top arc of the tooth. For many years, the pressure Angle was determined to be 14.5°, which is considered the standard. However, modern technology has adapted and changed this standard. When the gear has a large pressure Angle, the gear teeth are larger and stronger.

Gear Backlash

When the teeth of a gear mesh, there is a gap between the teeth, called a backlash. In the design of gears, the amount of backlash can be limited so that the mesh of teeth is closely bonded together.

Tooth Temperature

A key factor in using plastic gears is temperature, which affects their performance. Temperature concerns were addressed during the design phase by the choice of materials used to produce plastic gears. However, it is impossible to calculate the operating temperature of the gear correctly. In essence, it is advantageous to monitor the gear operation to ensure that the temperature of the gear is not exceeded. Many thermoplastics can operate at temperatures up to 500°F(260°C).

Plastic Spur Gears Specification:


We are one of the best plastic spur gears suppliers. We can offer wide plastic spur gear stock. We have exported our products to clients around the world and earned a good reputation because of our superior product quality and after-sales service. We warmly welcome customers both at home and abroad to contact us to negotiate business, exchange information, and cooperate with us!

Plastic Gears for Sale

A custom-made plastic gear can be used to transfer not only motion but also power. While spur gears were once the most common type of plastic gear, almost all types of gearing, including cylindrical worm, helical, and ring and pinion gears, are now manufactured.

We have a wide range of China plastic gears for sale that can be used in a variety of industrial and commercial applications. Our gears are made of high-quality plastic, so you can be sure they will last long and perform reliably. We also offer a variety of sizes and styles to choose from, so you can find the perfect gear for your needs.

Lubricating Plastic Gears

When lubricating plastic gears, it is essential to choose the right type of grease based on the tribological performance and material compatibility. Some factors to consider include the viscosity, NLGI class, base oil and type of thickener. These factors affect the lubricant’s efficiency and its compatibility with the plastic gears.

The first consideration when lubricating plastic gears is a lubricant’s compatibility with the plastic. If a gear is not compatible with a lubricant, it may deteriorate prematurely, causing cracks and pits in the gear’s surface. The base oil and additives used in the lubricant must be compatible with the gear’s surface, as well as the plastic itself.