Title:
RETAINER FOR OSCILLATING BEARING, AND OSCILLATING BEARING PROVIDED WITH SAID RETAINER
Document Type and Number:
WIPO Patent Application WO/2017/159677
Kind Code:
A1
Abstract:
A retainer 40 for an oscillating bearing according to the present invention is provided with a plurality of pockets 43 for holding rolling elements 30. Each pocket 43 is large enough to accommodate two rolling elements 30 when aligned in the circumferential direction. Outer protruding parts 44 capable of limiting the movement of the rolling elements 30 are provided on the outer side in the radial direction of a pillar part 42, the outer protruding parts projecting in the circumferential direction and being oriented toward the outer side in the radial direction of the pockets 43. Inner protruding parts 45 capable of limiting the movement of the rolling elements 30 are provided on the inner side in the radial direction of the pillar part 42, the inner protruding parts projecting in the circumferential direction and being oriented toward the inner side in the radial direction of the pockets 43. When the minimum facing gap between a pair of outer protruding parts 44a, 44b that are adjacent in the circumferential direction with the pockets 43 interposed therebetween is defined as A, the minimum facing gap between a pair of inner protruding parts 45a, 45b that are adjacent in the circumferential direction with the pockets 43 interposed therebetween is defined as B, and the diameter of the rolling elements 30 is defined as D, then A < 2 × D and B < 2 × D.
Inventors:
TERADA TOMOAKI (JP)
Application Number:
PCT/JP2017/010179
Publication Date:
September 21, 2017
Filing Date:
March 14, 2017
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C33/54; F16C19/26; F16C33/56
Foreign References:
| JP2008504501A | 2008-02-14 | |||
| JP2011196421A | 2011-10-06 | |||
| JPH0979268A | 1997-03-25 | |||
| JPS62137415A | 1987-06-20 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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