Rolling bearings
JP7877781B2Active Publication Date: 2026-06-23NSK LTD
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- NSK LTD
- Filing Date
- 2022-04-04
- Publication Date
- 2026-06-23
Smart Images
Figure 0007877781000001 
Figure 0007877781000002 
Figure 0007877781000003
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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Citation Information
Patent Citations
Rolling bearing for high speed application e.g. dental handpieces, has roller bearing cage whose outer surface comprises profile different from circular shape, and depth of recess in outer surface varies along circumferential direction
DE102012016983A1
FR03112824A1
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