Rolling bearing unit with track surface for ensuring proper positioning of lip seal during assembly
US6196727A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1999 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Jan 22, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2326/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rolling bearing unit comprises a first inner ring member having a first outer peripheral surface portion, a second outer peripheral surface portion, a peripheral shoulder formed in the first outer peripheral surface portion, a track surface formed in the second outer peripheral surface portion, a convex portion formed in the second outer peripheral surface portion adjacent an outer axial end of the track surface, and a shaft portion. A second inner ring member is connected to an end of the shaft portion of the first inner ring member and has a track surface formed in an outer peripheral surface thereof. An outer ring member has a first track surface and a second track surface formed in its inner peripheral surface. A first rolling member is disposed between the track surface of the first inner ring member and the first track surface of the outer ring member. The convex portion of the second outer peripheral surface portion has a flat surface on which the first rolling member rolls during assembly of the rolling bearing unit. A second rolling member is disposed between the track surface of the second inner ring member and the second track surface of the outer ring member. A seal m…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.