Metallic Bearings
These include self-lubricating bushings and plain bearings made from materials like sintered bronze, copper, aluminum alloys, lead, and sintered iron and
copper.
Self-lubricating bearings, also known as maintenance-free bearings, provide their own lubrication without requiring repetitive external applications of solid lubricants or oil.A self-lubricating bearing is a type of bearing it contains lubricants embedded within its material structure, allowing it to lubricate itself automatically during motion.There are three types of Self-Lubricating Bearing..
Metallic Bearings , Non-Metallic Bearings , Multi-Layered Bearings