The choice of materials affect the bearing performance

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When detect chrome steel and stainless steel as a bearing material advantages, they are not only with rust. Chromium steel is the most common bearing materials. It is harder than stainless steel, so a long er service life. However, at higher temperatures, its performance is not how to.high-speed bearings
120C high temperature, it occurs to a great deformation of the load decreases. 150C of the high temperature it can tolerate it, but the instant 150C or higher temperatures will reduce bearing life. The heat treatment allows the bearing to withstand a moment of high temperature 170C.double row angular bearing
The most commonly used stainless steel bearings 440, it is hard enough and solid load (20% less than the brass, steel), but it can rust, you can put up with the instant high temperature 250C and 300C of the sustained high temperatures. We often mistakenly thought that all of the stainless steel is not magnetic, 440 stainless steel is magnetic, it is not completely rust-proof, but by the impact of salt, acid, alkali. 316 levels of anti-rust performance is very good, is not magnetic, but relatively soft so the load, it is not solid, 316 bearing accuracy is not high, rough feel.double row ball bearing