Super precision ball bearings are mainly made up of four basic elements: Ball (ball), the inner ring (inner ring), the outer ring (outer ring) and the holder also called retainer (cage or retainer). General industrial use of ZYS ball bearings to meet the AISI standard, ball and ring 52100 is usually high chromium steel, Rockwell hardness (Rockwell C- scale hardness) of between about 61-65. While maintaining the hardness of the ball and ring compared to low, the material with metal (such as: carbon steel, aluminum alloy) or non-metallic (eg: Teflon, PTEF, polymer materials). ZYS ball bearing (ZYS ball bearing) than the journal bearing (journal bearing) rotation friction is small, so the same speed, temperature will be relatively low friction Angular contact thrust ball bearing is a rolling bearing, ball ball mounted on inner and outer rims intermediate steel ring, can withstand a greater load. Also known as ZYS ball bearings.
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