The rolling bearing operating performance is decided to a great extent by its material performance.The KOYO import bearing usually with the low-alloy, the high-purity whole quenches the chrome steel to do for makes the KOYO import bearing ring and the rolling body material.To withstands the high impact load and the alternation bending stress KOYO import bearing, the use carburizing steel.
In recent years, as a result of the KOYO import bearing steel quality unceasing enhancement (natural price also in rise), could cause its KOYO to import the bearing bearing capacity to enhance largely.The research results and the practical experience all proved present standard trundle bearing steel manufacture KOYO import bearing, in lubrication good, environment clean and in load not big situation, already might achieve the infinite fatigue strength.
The rolling bearing ferrule and the rolling body heat treatment craft guaranteed the KOYO import bearing in 150 degrees, the size is stable.Regarding the higher operating temperature, needs to use the special heat treatment method.If the KOYO import bearing uses in the corrosive environment, then needs the KOYO import bearing steel to have does corrosiveness.The stainless steel system standard KOYO import bearing adds the prefix in the code number “S” and the suffix “W203B”.This kind of KOYO import bearing and the whole quenches the KOYO import bearing steel to make KOYO to import the bearing the main dimension and bearing capacity is same.In order to maintain its corrosion resistance ability, its surface cannot damage in the installment and the use process.
The production silicon nitride ball uses in the ceramic main shaft K bearing.The ceramic ball is much lighter than the steel ball, the centrifugal force and the friction also obviously compares the steel ball to be small.This kind of KOYO import bearing when fat lubrication still might achieve the extremely high rotational speed, moreover the service life was long, the operating temperature was low.



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