| 摘要 |
PROBLEM TO BE SOLVED: To provide a seal for a bearing excellent in sealing capability using a simple means without using a reinforcing ring. SOLUTION: An inner ring and an outer ring are arranged opposing to each other through balls, and seals 5 are arranged on both sides of the balls mentioned above. The seals 5 are made of ring-like plate members, and the external circumference 5a of the seal 5 is attached to a bearing fitted to the fitting groove provided in the inner diametral face of the external ring. In addition, the internal circumference 5b of the seal 5 is loosely fitted to the circular groove 7 of the inner ring with a given clearance. This seal 5 is molded into a seal shape to be in an annular shape, which is made of plastic using thermoplastic polyester elastomer as base material in which glass fiber GF of 10 to 50% weight is mixed and properly dispersed.
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