Abstract: Although sometimes referred to as antifriction bearings, all rolling bearings experience friction while operating. Friction in rolling bearings retards motion and generates heat through the work of frictional forces, which causes temperatures to rise. Friction is a resistance to motion when two bodies in contact move relative to each other. Friction in rolling bearings mainly arises from sliding that occurs in the rolling element-raceway contacts, between the rolling elements and cage, between the cage and bearing rings, as well as viscous drag of the lubricant on the orbiting rolling elements. Roller bearings supporting axial loads will also generate friction from contact between the roller ends and the ring rib faces. The rolling elements of cylindrical and tapered roller bearings that operate under combined radial, axial, and moment loadings have a tendency toward skewing, which increases the amount of sliding motion and thereby the amount of friction generated by the bearing. Friction from seals is not addressed in this chapter, but in most cases, frictional torque from seals is larger than that of the bearing.
Publication Year: 2023
Publication Date: 2023-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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Cited By Count: 1
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