It is accepted to all that bearings accept a advanced appliance in automobiles. Their acceptance is from the engine, anatomy to the electrical assembly. Generally, automotive bearings are divided into two categories, i.e. sliding bearings and rolling bearings.
In the market, the artificial address is the capital adumbrative in the non-metal sliding bearing. In accepted bearings the artificial address is fabricated by the engineering plastics with a almost acceptable property.
The able factories are usually acceptable at the technologies such as self-lubricating technology of the engineering plastics. Through the fiber, special lubrication, glass bead and so on the self-lubricating property can be enhanced. And then in use of the treated engineering plastics, the self-lubricating plastic bearing can be processed by the way of injection technology. At present, the manufacturers such as Bhsbearings in China are quite excellent in this field around the world.
Rolling bearings, also known as rolling element bearings interpose rolling elements (like balls, rollers, cones) between mating surfaces. Often times, there are two mating surfaces, with the rolling bearings in the middle (between). This causes the 'Hertzian' contact. Therefore, hard materials is required.
These hard materials are also called as anti friction bearings because of properties like lower rolling friction, compared to its sliding bearings counterpart. In sliding aspect bearings, surfaces are in absolute acquaintance or afar by a adipose film. There is no 'Hertzian' acquaintance whatsoever. Instead, frictional armament and abrasion and abased on about acceleration and acquaintance armament (normal force, activated load, address amount capacity).
Sliding bearing can represent both the hydrodynamic lubrication bearings requiring lubricants that automatically form the oil film in the space between shaft A and bearing B by way of rotating the shaft and the hydrostatic lubrication bearings requiring lubricants that elevates the rotating shaft by providing the pressurized lubricant from outside.
From the above-mentioned introduction, it can be concluded that the Plastic Bearing and metal sliding bearing have many differences.