| 摘要 |
PROBLEM TO BE SOLVED: To easily provide a clutch release bearing improved in sealing performance, and reduced in weight without increasing bearing torque. SOLUTION: This clutch release bearing 10 has an inner ring 11 and an outer ring 12 relatively rotatably arranged via a ball 13, and first and second seal members 15 and 16 arranged in an opening of an annular space formed between both the rings 11 and 12 and sealing the opening as a main constituting member. The first seal member 15 forms a seal part S1 composed of a contact seal by making an inner diameter end 15b slidably contact with an inner cylinder surface 11a2 of the inner ring 11. A cover material 19 opposed in the axial direction to the first seal member 15 by extending in the radial direction is fixed to one end of the inner ring 11. A labyrinth seal S2 extending in a straight line shape in the radial direction is formed between an end surface of an annular protrusion 19c formed in the cover material 19 and an end surface of the first seal member 15 opposed to the end surface. COPYRIGHT: (C)2009,JPO&INPIT
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