Unitized multirow tapered roller bearing
US4235485A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1978 |
| Grant date | Nov 25, 1980 |
| Priority date | — |
| Expiry date | Dec 21, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2322/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A multirow bearing for supporting a work or back-up roll of a rolling mill includes inner and outer races and tapered rollers arranged in two end rows and two intermediate rows between corresponding raceways on the inner and outer races. The inner race is a unitary structure, while the outer race is comprised of two double cups. The tapered rollers of the intermediate rows have their large ends presented toward each other and those ends bear against a center thrust rib that may be free to float in the axial direction so as to equalize radial loads between the rollers of the two intermediate rows. The radial clearance between these rollers and their respective raceways can be less than the clearance between the rollers of the end rows and their respective raceways so that the rollers of the intermediate rows carry most of the radial loading. Also, rollers of the end rows can be at a steeper angle than the rollers of the intermediate rows, and are therefore better able to accommodate thrust loads and moments. The large ends of the rollers in the end rows bear against rib rings that are secured to the double cups of the outer race by seal cases which serve to unitize the bearing for h…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.