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The hardness is one of the important indexes of the antifriction bearing


24th September 2013 Bearing Technology 0 Comments

The hardness is one of the important indexes of the antifriction bearing. It has close relations to contact fatigue strength, wearability, elastic limit with the material, the life-span of the antifriction bearing of direct influence, the hardness of the bearing should usually bear the loaded way and great according to the bearing

The hardness is one of the important indexes of the antifriction bearing. It has close relations to contact fatigue strength, wearability, elastic limit with the material, the life-span of the antifriction bearing of direct influence, the hardness of the bearing should usually bear loaded way and magnitude, bearing size and thick overall situation of wall to decide according to the bearing. The antifriction bearing should be suitable with the hardness of the steel, will influence the bearing life time too big or pass small. As everyone knows, the main failure mode of the antifriction bearing is to contact fatigue failure, and make the bearing precision lose because the wearability is bad or the size is unstable; If the part of the bearing lacks certain toughness, will cause the destruction of the bearing because of happening fragily and brokenly while bearing greater shock load. So, must confirm the hardness of the bearing according to bearing detailed conditions and disruptive way. As to the situation that because fatigue peels off or the bearing precision of wearability commission loses, the bearing part should choose higher hardness; It is bigger for bearing bearing of shock load ‘ rolling mill: Bearing, bearing of the railway and some car bearings,etc. ,It is very essential in order to improve the toughness of the bearing that should reduce the hardness appropriately.










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