| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To effectively suppress the deformation of an elastic piece (a claw-like part) caused by a high temperature and an increase in speed, and to prevent the runout of a cage during high speed use caused by weight reduction. <P>SOLUTION: A metal plate 4a is insert-formed at least at one of the side faces of the cage, that is, the metal plate 4a is integrally insert-formed at the side face of a main part 1 and the side faces of one elastic piece 3 and an adjacent elastic piece 3. Deformation under the high speed and high temperature can thereby be suppressed while being low in cost and lightweight. The metal plate 4a has a circular hole 5 in a center part position corresponding to the side face of the main part 1 between pockets 2. A part of synthetic resin for insert formation infiltrates into the circular hole 5 and is solidified to position the synthetic resin and the metal plate 4a at this part. The main part 1 and the metal plate 4a can thereby be firmly connected to prevent separation. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
