What is a Plastic Gear?

Plastic gears are mainly used for transmission, and the gear material is plastic, which is becoming more and more widely used in mechanical transmission.

Plastic gear

Plastic gears are mainly used for transmission, and the gear material is plastic, and they are increasingly used in mechanical transmission.

Chinese name

Plastic gear

Foreign name

plastic gear

Nature

Material is plastic

Attributes

Toothed mechanical parts

Features

Widely used in the field of machinery

Common materials

Polyoxymethylene (POM), nylon (PA66, etc.)

Plastic gear

Plastic gear is one of the gears, and its material is plastic.

Gears are toothed mechanical parts that can mesh with each other. It is widely used in mechanical transmission and the entire mechanical field. Modern gear technology has reached: gear modulus O.004 100mm; gear diameter from 1mm 150m; transmission power can reach 100,000 kilowatts; speed can reach 100,000 rpm; maximum peripheral speed reaches 300m / second.

Plastic gear

Manufacture of various plastic gears: spur gears, helical gears, worm gears, crown gears, bevel gears, planetary gears, tooth boxes, damping gears, involute gears, cycloid gears, arc gears and other gears , Non-standard weird gears, multi-process cooperation with complex rubber gears, foreign standard low-noise gears, etc.

Selecting gear combinations with various process parameters can effectively meet the designed use requirements, such as deceleration, speed increase, timing, energy conversion, positioning and fixed point functions.

Products are used in various industries such as micro-motors, electronic products, auto parts, household appliances, office supplies, toys, and crafts. Such as in car rearview mirrors, headlight regulators, timers, micromotors, reducers, printers, fax machines, cameras, DVD movements, paper shredders, copiers, massagers, toy movements, instruments, medical instruments , Vacuum cleaners, automatic coffee machines and other products all use different gear combinations. [1] The causes of gear system noise mainly include the following aspects: 1. Gear design: improper selection of parameters, too little coincidence, improper or non-shape modification of tooth profile, irrational gear box structure, etc. 2. Gear processing: the base error and tooth shape error are too large, the tooth side clearance is too large, and the surface roughness is too large. 3. Gear train and gearbox: eccentric assembly, low contact accuracy, poor parallelism of the shaft, insufficient rigidity of the shaft, bearing and support, low rotation accuracy of the bearing and improper clearance. 4. Input torque in other aspects. Load torque fluctuations, torsional vibration of the shafting, balance of the motor and other transmission pairs, etc.

The use of gears in transmission has been around for a long time. In more than 300 BC, Aristotle, an ancient Greek philosopher, explained the problem of transmitting rotary motion by using bronze or cast iron gears in Mechanical Problems. A complete set of wheel trains has been used in the guide cars invented in ancient China. However, the ancient gears were made of wood or cast from metal. They can only transmit the rotary motion between the shafts. The smoothness of the transmission cannot be guaranteed, and the bearing capacity of the gears is very small.