| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a retainer for a rolling bearing capable of suppressing a temperature rise of the bearing, whose guide surface guided by the peripheral surface of the raceway ring is unlikely to be torn off. <P>SOLUTION: The retainer 5 is equipped with a resin portion 21 having the guide surface 25 guided by the raceway shoulder part 16 of the outer ring 1, and a metal portion 22, which has through-holes 24a, 24b, 24c positioned at a certain spacing in a ball accommodation part 27. The resin portion 21 has a first portion 36 including the guide surface 25 and positioned about the through-holes 24a, 24b, 24c on the side with the guide surface 25 of the through-holes 24a, 24b, 24c, a second portion 37 positioned about the through-holes 24a, 24b, 24c on the opposite side to the guide surface 25 of the through-holes 24a, 24b, 24c, and a third portion 38 put fully in the through-holes 24a, 24b, 24c and coupling the first portion 36 with the second portion 37. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
