Tight bearing suitable for exceptionally heavy duty conditions
US4792242A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1988 |
| Grant date | Dec 20, 1988 |
| Priority date | — |
| Expiry date | Jan 25, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C33/805
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A tight bearing suitable for exceptionally heavy duty conditions is supplied with side screens (14) made of a plate composition (16) which is restrained to the external ring (10) of the bearing and forms a labyrinth seal against the internal ring (11), and of plastic and elastomer materials (15) supplied with a lip (17) which creates friction on the internal ring (11); other plates (18) are assembled externally with respect to the screens (14) and are integral on the internal ring (11) and form a labyrinth seal (23) with the external ring (10) of the bearing; the internal face of the external plates (28) is lined with a layer of plastic and elastomer material (19) from which at least one lip (20) extends and forms an essentially axial seal against the external face of the plate (16) of the internal adjacent screen (14); the lip (20) of the layer (19) which lines the internal face of the external plates (18 ) slips and seals along a certain length (21) of bent conical converging internal plate (16) towards the internal ring (11) and towards the external part of the bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.