Friction of rolling bearings mainly between the rolling elements and Raceway of rolling friction and sliding friction;
Cage and rolling and sliding friction between the ring boot (when there is no cage for sliding friction between the rolling elements);
Roller end faces and sliding friction between the ring surface; lubricants viscous resistance;
Sliding friction of sealing device comprising its size depends on the type of bearing, load, lubrication, sealing, speed, size and other factors.
Torque bearing type category:
Low friction torque in equipment and machinery, often use deep groove ball bearings, cylindrical roller bearings and self-aligning ball bearings to withstand radial loads;
If the two point gap is too large, the choice of radial and thrust bearing Assembly solution to;
Selection of single row thrust ball bearings are subjected to bearing loads, if subjected to combined load, the choice of angular contact ball bearings, when basically the same load angle and contact angle, minimum friction torque is available.


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