| 摘要 |
A sliding sleeve made of polymeric material for clutch release bearings comprising a hollow cylindrical hub element (1) provided with a radially outwardly directed ring collar (3) on its outer surface, a ring-shaped metal flange (4) abutting against the surface of the collar (3) facing the clutch forming a stop surface 5 for a radially adjustable raceway of a roller bearing, characterized in that the metal flange (4) has at least one axially directed collar (6,9) extending over at least part of its inner and/or outer circumference surface, the collar resting on the outer surface (2,10) of the hub element (1) and/or the ring collar (3) under radial prestress.
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