| 摘要 |
PROBLEM TO BE SOLVED: To provide a thrust ball bearing capable of being used for many hours even under vacuum environment at high temperature, preventing possibility of generation of dust even after use for many hours, and reducing cost. SOLUTION: This thrust ball bearing 1 is provided with a housing side raceway track panel 2, a shaft side raceway track panel 3 arranged by opposing to the housing side raceway track panel 2, a plurality of spherical rolling bodies 6 rolling on a circular raceway track formed between opposing faces of both raceway track panels 2, 3, and a cage 7 for holding the rolling bodies 6. The cage 7 is formed by synthetic resin having self-lubricity and is arranged so as to divide into a plurality of parts in the direction of raceway track of the circular raceway track, and each cage 7 holds a plurality of rolling bodies 7, respectively. COPYRIGHT: (C)2007,JPO&INPIT
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