Radial-roller antifriction bearing arrangement, in particular for a needle sleeve

Abstract

A radial-roller antifriction bearing arrangement, in particular for a needle sleeve (), which includes a thin-walled outer ring (), which can be inserted into a bore () of a housing () and which has two radially inwardly directed rims (), and of a needle ring () which is held in the outer ring () by said rims (). Here, the needle ring () is formed by a needle cage () and by a multiplicity of bearing needles () guided therein at uniform intervals in the circumferential direction, which bearing needles roll on the inner lateral surface () of the outer ring () and on the outer lateral surface () of a shaft () to be mounted or of a separate inner ring. Furthermore, axially adjacent to the side surfaces () of the needle cage () there are arranged at least two seals () which protect the needle sleeve () against dirt from the outside and against loss of lubricant. At least one of the seals (or) is formed from an elastomer as a multi-lip seal composed of at least two component rings () arranged adjacent to one another, which multi-lip seal extends over that part of the inner lateral surface () of the outer ring () which is arranged between the associated rim (or) of the outer ring () and the adjacent side surface (or) of the needle cage () and over the inner lateral surface (), the end surface () and the outer lateral surface () of the rim (or).