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What is the import bearing friction torque?Such as very according to the choice of friction torque of imported bearings?These is not difficult to understand and grasp, today we will come together to share this knowledge. Imported bearing friction is mainly composed of roller and the ring groove rolling friction between sliding friction;Between cage and rolling element and the guide ring surface of sliding friction (without a cage for the sliding friction between the rolling element).Roller end face and face the sliding friction between the ring gear edge;The viscous resistance of lubricant;Sealing device of sliding friction, etc, and its size depends on the type, size, load bearing, rotational speed, lubrication, sealing and other factors. About import bearing selection, we also recommend that you look at the "careful judgment imported bearing on the quality of myth" the introduction of this article. In need of low friction torque, instruments and machinery usually choose deep groove ball bearings, cylindrical roller bearings, self-aligning ball bearings, to bear radial load;Choose to load bearing single thrust ball bearing, if joint under load, can choose angular contact ball bearing, when the load Angle and the contact Angle is identical, can obtain the minimum friction torque;If two angles of the gap is too big, can choose the centripetal and thrust bearing assembly of the ways to solve.