| 摘要 |
PROBLEM TO BE SOLVED: To provide a multipoint contact ball bearing which can be replaced with a conventional double row combined angular contact ball bearing as a bearing for supporting a ball screw and a bearing for supporting a rotary shaft, and can carry out exact positioning, and can improve the life of lubrication. SOLUTION: A lubricant supply member 21 made of lubricant containing polymer is provided in a space 20 between an outer race 12 and an inner race 13. Part of a ball 15 is brought into contact with the lubricant supply member 21. COPYRIGHT: (C)2004,JPO&NCIPI
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