Gear refers to a mechanical element with gears on the rim that continuously meshes to transmit movement and power. In modern industrial products, gears are the most versatile and important functional components, not one of them. Almost all products that involve mechanical transmission will use different types of gears.

With the development of science, gears have slowly changed from metal gears to plastic gears. Because plastic gears are more lubricating and wear-resistant. It can reduce noise, reduce costs, and reduce friction. Commonly used plastic gear materials are: POM, PA, nylon, PEEK, etc.

Motor gear-BASF/BASF/POM

This gear is used in the most common coil motor drive. The flexural modulus of POM N2320 is 2470 Mpa, the elongation at yield is 9.4%; the friction resistance coefficient is 0.35, and N2320 003 is internally added to improve the easy-release model and good self-lubricating; the modulus of elasticity is 2600 Mpa, the crystallinity reaches 70%, and it has good Resilience, high dimensional stability, high precision; tensile creep modulus 1400 Mpa; good chemical resistance such as weak acids, alkalis, alcohols, hydrocarbons, ketones, ethers, mineral oils and standard fuels, Very intolerant to strong acids, strong alkalis and ultraviolet radiation.

Electric curtain gear-EMS-GRIVORY/Eymans

This gear needs to withstand greater working strength, so the mechanical strength of the material is high. The tensile modulus of GV-5H reaches 18000MPa; it is reinforced with 50% GF and has good dimensional stability; the base material is PA66, which has good self-lubricating properties and can reduce the friction coefficient between gears; it has good weather resistance and chemical resistance.

Compared with the commonly used materials POM and PA66 for making gears, PA12 has obvious advantages in corrosion resistance, dimensional stability, impact resistance and low temperature use environment. However, the cost of PA12 material is much higher than other materials, so PA12 gears are mainly used in parts with harsh working conditions and high dimensional stability requirements. L1930 has been certified by mainstream OEMs; PA12 base material is reinforced with 30% glass fiber and has excellent dimensional stability; performance changes from minus 40 degrees to 125 degrees are very slight; it has high impact resistance and notched impact strength, even below the freezing point , Has good resistance to grease, fuel, hydraulic oil and salt; high production efficiency, noise and vibration damping advantages than traditional metal parts; Evonik is one of the few manufacturers in the world that can independently produce PA12.

Automobile engine oil pump gear-DSM/DSM

TW241B3, PA46 added 15% carbon black, flexural modulus 10500, notched impact strength (wet) 12kJ/m2; heat distortion temperature (1.8Mpa): 290°C; thermal expansion coefficient: (parallel) 0.25E-4/°C , (Vertical) 0.5E-4/°C, shrinkage rate: (parallel) 0.3%, (vertical) 1.1%; Compared with other specifications, it has good low creep and self-lubricating performance; PA46 is made of butanediamine and hexane Aliphatic polyamide formed by diacid polycondensation, resistant to weak acids, alkalis, salt solutions, alcohols, ethers, ketones and standard fuels.

PEEK material has superior corrosion resistance, aging resistance, and solubility resistance; high temperature, high frequency and high voltage electrical properties; both toughness and rigidity; precise size requirements; radiation resistance, wear resistance, corrosion resistance: hydrolysis resistance, high temperature and high pressure Maintain excellent characteristics, abrasion resistance, good antistatic and electrical insulation performance; components that require high mechanical strength. Its gears are mainly used in demanding applications, automotive and other (including aviation) transportation markets, semiconductor manufacturing equipment, compressor valves, and medical equipment.