Special bearings

A ceramic bearing is suitable for any environment in which wear, corrosion, thermal resistance, and electric insulation are required, so metal bearings are not suitable. Ceramic ball bearings require less energy owing to their high speed that aids in reducing friction. Moreover, they also offer high dimensional stability; have smoother and rounder surfaces; and provide the low density and optimum resistance against heat and corrosion.

The plastic bearings are a contact type bearings which involve mechanical contact between machine elements, and they also involve sliding or rolling or flexural bearings. The plastic bearings are also referred to as self-lubricated bearings. The composition of plastic bearings has been modified and altered to achieve the needed bearing features which could be favourable to different types of machines.