Cage for rolling bearing and rolling bearing
US9416821B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2013 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Nov 7, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2360/22
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A cage for a rolling bearing having a film, formed on a surface thereof, which wears little over a long period of time from an initial stage of sliding contact between the film and rolling elements as well as other members and does not peel off the surface of a base material of the cage or dissolve in lubricating oil containing a sulfur-based additive and a rolling bearing having the cage. A cage (2) retains needle rollers (3) which are rolling elements of a needle rolling bearing (1). Of an entire outer surface of the cage (2), a tin alloy film consisting of tin and a metal other than the tin is formed on at least a sliding-contact surface of the cage (2) to be subjected to sliding contact with the needle rollers (3) and a sliding-contact surface thereof to be subjected to sliding contact with other members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.