Gear material

According to the use of the gear, the working environment is different, the gear material used is also different, mainly there are the following:

1. Steel (such as steel 45# 20CrMn 40Cr, which the gear requiring high precision)

2. Cast iron (such as gray cast iron ductile iron QT20, QT450, QT500)

3. Copper, aluminum (such as: tin bronze and other wear - resistant copper)

4. Nylon, plastic

5. Bakelite

6. Powder metallurgy