Rolling bearing cage and assembly
US8591121B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2010 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Oct 13, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2240/70
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a rolling bearing cage, adjacent cage bar portions on both sides of each pocket have protrusions protruding toward the pocket and a radially outer side and retaining a rolling element, accommodated in the pocket, from the radially outer side, a side surface of each cage bar portion and the corresponding protrusion, facing the pocket, has a guide surface slidably guiding the rolling element, the guide surface includes a first circular arc surface having a concave shape corresponding to an outer peripheral surface of each rolling element, and a side surface of each protrusion, facing the pocket, has a second circular arc surface having a convex shape smoothly continuous with a radially outer side of the first circular arc surface and an introducing surface smoothly continuous with a radially outer side of the second circular arc surface and inclined to a side opposite to the pocket toward a distal end of the protrusion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.