1. Friction compatibility
Direct contact of the shaft and the bearing to prevent the adhesion and the formation of the boundary lubrication performance. The material impact Friction compatibility factors:
(1) into the vice of Materials and Metallurgy constitutes the degree of difficulty of the alloy.
(2) affinity and capacity of the material and lubricant.
(3) into a vice material without lubrication state friction factor.
(4) the microstructure of the material.
(5) The thermal conductivity.
(6) the size of the material surface energy and oxidative properties of the film.
2. Clamp into sex
Material allow external hard particles clamp into the lubricant to prevent scratching or (and) the ability to abrasive wear. The metal material, a low hardness and a low modulus of elasticity, the clamp into the like, while the nonmetallic materials are not necessarily, for example, carbon graphite, low elastic modulus, but the clamp into bad. One-way bearing friction parcels usually softer material with harder materials, bearing generally softer material.
3 run-in resistance
Shaft diameter and bearing the running-in process, reduce the shaft diameter and bearing processing error, concentricity error, surface roughness parameter values, so that a uniform contact, thereby reducing the ability of the friction and wear rate.
When detecting the advantages of chrome steel and stainless steel as a one-way bearing materials and found that they are not only with rust. Chrome steel is the most common one-way bearing material. It is harder than stainless steel, and therefore longer life. At higher temperatures, however, its performance is not how to.
120C in a high temperature, it will occur to a great deformation, the load decreases. Continued 150C high temperature it can endure, but instantly 150C or higher temperatures will reduce the one-way bearing life. Heat treatment can make a one-way bearing to withstand the high temperatures of the instant 170C.
440 of the most commonly used one-way bearing stainless steel, it is enough hard and firmly to load (20%) less than the brass steel, but can rust can endure the continuous high temperature instantaneous high temperature of 250C and 300C. We often mistakenly thought that all stainless steel is not magnetic, 440 stainless steel is magnetic, it is not entirely the rust, but by the impact of salt, acid, alkali. 316 levels of anti-rust performance is very good, not magnetic, but relatively soft so the load is less, it is not solid, 316 one-way bearing accuracy is not high, feeling rough.
 



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