Pulley device for a tensioner roller or idler roller
US11035453B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2019 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | Dec 27, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2007/0865
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The pulley device for a tensioner roller or an idler roller of a transmission element having a pulley and a bearing. The bearing is provided with a rotating external ring mounted to the pulley, and with a fixed internal ring, a radial space being defined between the rings, with rear sealing means and front sealing means closing the radial space on each axial side, and with at least one row of rotating elements arranged in the radial space. The fixed internal ring is provided on its rear side with a circumferential groove for collecting pollution which is machined on an external surface of the ring, the circumferential groove being offset axially in relation to the rear sealing means outside the radial space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.