Rolling bearings

Abstract

To provide a rolling bearing which can make compatible both the reduction of rotation torque and an improvement of durability.SOLUTION: A rolling bearing comprises: an inner ring; an outer ring; a plurality of rolling bodies arranged between the inner ring and the outer ring; and a cage 5 guided by the inner ring, and holding the plurality of rolling bodies. The cage 5 includes: a plurality of pocket parts 51 having pockets 50 in which the plurality of rolling bodies are arranged, respectively; and a plurality of column parts 52 having guided faces 52a which are guided by the inner ring. Inside faces 51a of the plurality of pocket parts 51 in a radial direction are separated from a guide face 2b of the inner ring 2 so that widths of the pockets 50 in a radial direction become narrow as approaching centers C of the pockets 50 in a circumferential direction.SELECTED DRAWING: Figure 2

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