Needle roller bearing

Details Needle roller bearing Needle roller bearing

Filed on

1994-09-01

Date issued

1995-10-17

Examiner

Footland, Lenard A.

Patent Class

Bearings

SubClass

Rotary bearing

SubSubClass

Antifriction bearing

Other Related Categories

384481, 384564, F16C 3366

Type

Patent

Status

active

Patent number

054584213

Description

ABSTRACT:
A needle roller bearing (1) comprising an outer bearing ring (6), an inner bearing ring (8) arranged on a shaft (3) and needle rollers (9) which roll on mutually facing peripheral surfaces of said outer and inner bearing rings (6,8), characterized in that at one axial end, the outer bearing ring (6) and the inner bearing ring (8) comprise radially overlapping flanges (11,12) located axially next to each other with an axial sliding ring (13) arranged therebetween which bears against mutually facing end faces of said flanges (11,12) and, together with these flanges (11,12) and a peripheral surface of one of the bearing rings (6), defines a pressure chamber (15), pressure oil from the interior of the bearing penetrating into this pressure chamber (15) and flowing from there with a clear loss of pressure out of the needle roller bearing (1) by passing between at least one of said end faces of the flanges (11,12) and the axial sliding ring (13).

REFERENCES:
patent: 3924912 (1975-12-01), Pitner
patent: 4869604 (1989-09-01), Hill et al.
patent: 4907898 (1990-03-01), Dickinson
patent: 5261751 (1993-11-01), Heinz

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