We explain the bearing friction torque regard. Rolling friction mainly by the rolling element and raceway ring and rolling friction between the sliding friction; cage and rolling elements and rings sliding friction between the guide surface (no cage when the sliding friction between the rolling elements) ; profile roller end edge of the ferrule sliding friction between the surface; lubricant viscosity resistance; sliding friction of the sealing device, etc., whose size depends on the bearing type, size, load, speed, lubrication, sealing and other kinds of factors.
    Low friction torque needed equipment and machinery, usually use deep groove ball bearings, cylindrical roller bearings and self-aligning ball bearings to withstand the radial load; optional single row thrust ball bearing to the load, if the combined load to bear, you can use angular contact ball bearings, the load angle is consistent with the contact angle obtained when the minimum friction torque; big difference if two angles, the choice of radial and thrust bearing assembly solutions to. Choose low bearing friction torque, the structural design should avoid contact sealing device. Meanwhile, low-friction torque bearing lubrication should be used in drip lubrication, oil mist lubrication and oil lubrication.


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