Cage for rolling bearing and rolling bearing having the same
US7771122B2 · kind B2 · utility
8Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2008 |
| Grant date | Aug 10, 2010 |
| Priority date | — |
| Expiry date | Feb 1, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C19/26
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A concave surface 60 is formed in an outer peripheral surface of each of pillar portions 26 of a cage 40. A plurality of recesses 42, 43, 52 and 53 are formed in outer peripheral surfaces of annular portions 24 and 25 of the cage 40. There are provided passageways 46, 47, 56 and 57 communicating respectively with the recesses 42, 43, 52 and 53. An axially-outer end of each of the passageways 46, 47, 56 and 57 is open to an axial inner end face of the annular portion 24, 25 or to the concave surface 60 of the pillar portion 26.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.