Thrust ball bearing unit
US4699530A · kind A · utility
47Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1986 |
| Grant date | Oct 13, 1987 |
| Priority date | — |
| Expiry date | Jun 30, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2326/05
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A thrust ball bearing unit has a pair of ringed cylindrical upper and lower casings, each casing being made of synthetic resin, a pair of upper and lower races, and a buffer interposed between the upper casing and the upper race or between the lower race and the lower casing. Alternatively, two buffers are interposed between the upper casing and the upper race and between the lower race and the lower casing respectively. The upper and lower casings have peripheral sealing portions which are in a labyrinth or contact seal relationship with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.