Bearing bush material performance characteristics are mainly as follows:
1, friction reduction: the material pair has a low friction coefficient.
2, wear resistance: the wear resistance of the material, usually expressed in terms of wear rate.
3, bite resistance (adhesive): the heat resistance and anti-adhesion of the material.
Friction compliance: the ability of the material to compensate for the
poor initial fit of the sliding surface of the bearing through the
elastoplastic deformation of the surface.
embeddedness: the material accommodates hard particles embedded, thus
reducing the performance of scratching or abrasive wear on the sliding
surface of the bearing.
running-in: bearing bush and journal surface after a short period of
light load operation, the formation of the surface of each other
The ability (or quality) of shape and roughness.
7, in addition, there should be enough strength and corrosion resistance, good thermal conductivity, technology and economy.
Plain bearing bearing bush material type:
Commonly used bearing materials are: metallic materials, non-metallic materials and powder metallurgy materials
metal materials generally use bearing alloy (Babbitt alloy, white
alloy) is composed of tin, lead, antimony, copper and other alloys;Copper alloy, which is mainly divided into bronze and brass two categories;Cast iron has common gray cast iron, ductile cast iron, etc.
Bearing non-metallic materials have plastic, hardwood, rubber, among them plastic with the most
powder metallurgy material is made of copper, iron, graphite and other
powders by pressing and sintering into porous bearing material.