Roller bearing sigma cage
US5255985A · kind A · utility
25Cited by
12References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 17, 1992 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Nov 17, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49691
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A strip of metal is pierced intermediate the edges thereof to form slots for rollers and is bent adjacent the edges to form flanges. Each bend intersects the slots such that the slots wrap around the bends into the flanges. The strip of metal is then formed into a circular hoop such that the flanges form axially spaced end rims to retain the rollers axially. Crossbars between the slots are offset radially in a sigma configuration to retain the rollers radially. Edges of the slots may be specially formed to facilitate flow of lubricant through a roller bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.