| 摘要 |
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).
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