... .OEM 2.GCr15, GCr15SiMn 3.ISO 9001.2000 4.Have stock Thrust ball bearings:1. Is a separable type bearings, contact angle ... carry axial load.2. Low speed limit. Ji Xiang roller ball outside of the centrifugal force increases, easy bruising, but not ... suitable for high-speed operation.3.The ball side seat thrust ball bearings with aligning performance, eliminate installation errors. Bearing ...