POM and PA have excellent mechanical strength and wearing resistance. With good self-lubrication performance and low friction coefficients. There are suitable for manufacturing precision plastic bearings. In addition, they can be used in high-speed application. Plastic bearing made with POM is the most extensive sort of all the plastic bearings. Generally, the inner and outer rings are made of POM or PA, the cage made of PA and the balls is glass, stainless or ceramic ones. These bearings could be used in some alkali environment but not proper to be used in some acid environment.
