1) metal materials, such as bearing alloy, bronze, aluminum alloy, zinc base alloy, etc
double direction thrust ball bearing, bearing alloy is also called the white metal, tin, lead, antimony and other metal alloy, because of its good wear resistant, high plasticity, running-in performance is good, good thermal conductivity and resistance to adhesive and good and good and oil adsorption, therefore applicable to the overloading, high-speed cases, the strength of the bearing alloy is small, the price is more expensive, must be cast in bronze, steel or cast iron shell, form a thin coating.
2) the porous metal material (powder metallurgy materials)
Porous metal materials, metallurgical bearing is a kind of powder material, it has porous organization, if the immersion in the lubricating oil, full of lubricating oil in the pores, into the oil bearing, has self lubricating performance. The toughness of the porous metal material is small, only suitable for smooth without impact load and medium and small speed.
3) non-metallic materials
Commonly used bearing bearing plastic: plastic with phenolic plastics, nylon, ptfe and so on, plastic bearings have larger compressive strength and abrasion resistance, oil and water lubrication, also has the self-lubricating properties, but poor thermal conductivity.
没有评论:
发表评论