How are bearing balls made?


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The importance of steel ball crushing load test
As an important part of ball bearings, steel balls have a great influence on the life, accuracy, vibration and running characteristics of ball bearings. When the bearing works, the contact surface of the steel ball and the raceway is actively small, and the compressive stress per unit area is large, generally up to 150-500 kg/mm2.

The points on the contact trajectory of the steel ball to the raceway are cyclically stressed. Under normal circumstances, the number of cycles per minute is more than tens of thousands of times. Under the repeated action of cyclic stress, the high carbon steel ball is prone to fatigue damage. This phenomenon is called contact fati

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