Labyrinth seal bearing
US9926981B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2015 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Apr 3, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C33/743
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A labyrinth seal bearing includes: an inner ring; an outer ring; a labyrinth seal structure, located in a radial gap between the inner ring and the outer ring; wherein the labyrinth seal structure includes a plurality of seal rings, a labyrinth gap channel is formed among the plurality of seal rings, and the labyrinth gap channel includes two ports respectively connected with an external of the bearing and an internal of the bearing; and a seal loop made from lubricating grease, wherein the seal loop is located in the labyrinth gap channel, and blocks the labyrinth gap channel, so as to isolate the two ports from each other. The present disclosure solves the problem of poor sealing effect in a conventional labyrinth seal bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.