| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an angular ball bearing capable of controlling the whirling of a retainer at the time of high speed rotation. <P>SOLUTION: The retainer 21 of the synthetic resin is installed between an outer ring 1 and an inner ring 11, and the balls 31 are accommodated in a pocket 23 formed in the retainer 21. The pocket 23 is made to be cylindrical and a conical guide face 26 is formed at the end of inner diameter side of the back and front part of the retainer circumference direction of its cylindrical inner face 24. A curvature radius at the end of a large diameter of this conical guide face 26 is made larger than that of the cylindrical guide face 24 and a contact point of the balls 31 to the conical guide face 26 is prevented not to displace largely toward the diameter at the time of high speed rotation and then the whirling of the retainer 21 is controlled. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
