Motor end bearings accommodating increased shaft lengths
US4795926A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1987 |
| Grant date | Jan 3, 1989 |
| Priority date | — |
| Expiry date | Jul 20, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21C7/0056
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor having a housing comprising a case and a case cover, and bearings for supporting a motor rotating shaft fitted to the case and the case cover, respectively. The bearings are secured to the case and include a large diameter portion at one axial end having a diameter larger than the diameter of a bearing mounting hole in the case. The bearings also include a small diameter portion, provided at the other end thereof, which is extended continuously from the large diameter portion via a shoulder having such a diameter as to be fitted into the bearing mounting hole in the case. A recess is provided on the end face of the small diameter portion so as to permit a substantial increase the distance l between the bearings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.