It can be divided into steel plate + copper layer + PTFE oil-free self-lubricating bearings, single-layer metal oil-free self-lubricating bearings, bimetallic oil-free self-lubricating bearings, solid inlaid oil-free self-lubricating bearings, etc.

Its materials can be divided into cast iron, copper-based and aluminum-based alloys, powder metallurgy materials, plastics, rubber, hardwood and carbon-graphite, polytetrafluoroethylene (Teflon, PTFE), modified polyoxymethylene ( POM), and so on.