| 摘要 |
<P>PROBLEM TO BE SOLVED: To secure the sufficient seizure resistant life of a double row radial ball bearing 5a, even when used under severe circumstances, by suppressing the leakage of base oil in a grease filled into the double row radial ball bearing 5a to the outside. <P>SOLUTION: Locked parts 20a provided on a portion near the outer diameter of a seal ring 13a are locked to a pair of locking grooves 21, respectively, formed in the inner peripheral face of an outer ring 10 at both axial ends. A portion of an elastic material 26 constituting the locked parts 20a is protruded to the inner diameter sides of both inside and outside shoulder parts 23 provided adjacent to both axial sides of the locking grooves 21, at both axial ends of the outer ring 10. The protruded portions 35a, 35b are interference-fitted throughout the inner peripheral faces of both inside and outside shoulder parts 23, 24, respectively. <P>COPYRIGHT: (C)2004,JPO |
