| 摘要 |
PROBLEM TO BE SOLVED: To provide a spherical dynamic pressure bearing having high versatility for a use and a strong bearing. SOLUTION: This spherical dynamic pressure bearing 10 is connected to an external shaft 52 for the use. The bearing 10 is provided with a ball 11, bearings 12 and 13 formed with spherical spaces to rotatably store the ball 11 and oil grooves 12a and 13a on an inner wall surface to section the spherical spaces, a supporting shaft 14 fixed to the ball 11 on an end side to be rotatable integrally with the ball 11 and having a projecting part 16 to project to the outside of the bearings 12 and 13 on the other end side, and a recessed part 18 formed into a recessed shape in a direction away from the ball 11 and provided at a distal end part of the projecting part 16 inserted and fixed with the external shaft 52. COPYRIGHT: (C)2004,JPO
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