The difference between oil bearing and self-lubricating bearing
The oil-impregnated bearing is made of metal powder as the main raw material, and the sintered body produced by the powder metallurgy method is inherently porous, and has technical advantages such as the number, size, shape and distribution of the pores which can be freely adjusted during the manufacturing process. The porous body of the sintered body is impregnated with 10% to 40% by volume of the lubricating oil, and is used in a self-supplying state. During operation, the bearing temperature rises, and since the oil has a larger expansion coefficient than the metal, it automatically enters the sliding surface to lubricate the bearing. Oil-bearing bearings can be used for a long time with oil, which is often used in places where refueling is not convenient.
The metal-based inlaid solid self-lubricating bearing is a novel lubricated bearing that combines the characteristics of a metal bearing and the characteristics of a self-lubricating bearing. The metal matrix is subjected to a load, and the specially formulated solid lubricating material acts as a lubrication. It has the characteristics of high bearing capacity, impact resistance, high temperature resistance and strong self-lubricating ability. It is especially suitable for heavy load, low speed, reciprocating or swinging, etc., which is difficult to lubricate and form oil film. It is also not afraid of water and other acid etching. And scouring. Inlaid bearings are not only fuel-efficient, energy-saving, but also have a longer working life than ordinary plain bearings. At present, the products have been widely used in metallurgical continuous casting machines, steel rolling equipment, mining machinery, ships, steam turbines, hydraulic turbines, injection molding machines and equipment production lines.