FBF SKF NSK QJ312 QJ313 QJ314 Bearings Four Point Angular Contact Ball Bearings

QJ four point angular contact ball bearing is a kind of bidirectional single row angular contact ball bearing. as a result of the special design the groove in the inner and outer ring,it has two contact points with 35 or 45 contact angle between every groove and ball,and so the products can bear bidirectional axial load. It has  high limited speed and is siutable for the high-speed operation.It allow the bearing to load a number of balls due to its combined inner ring with double half rings,thus giving a higher load bearing capacity.