| 摘要 |
PROBLEM TO BE SOLVED: To prevent cracking of a bent part of a pin support piece formed on a stopper ring for retainer loosening prevention. SOLUTION: A rolling element 8 is incorporated between raceway grooves 7 provided on both side faces of a guide block 6, and a raceway groove 3 formed on a side face of a track groove 2, and the rolling element 8 is retained by a retainer 9. The stopper ring 20 for retainer loosening prevention is attached to an opening end part of an outer ring 1, the pin support piece 26 is formed by bending the stopper ring 20 from a portion substantially hugging an inner circumference, and a pin 14b is provided on a tip of the pin support piece 26. Guide grooves 13 are formed on both ends of a swingable lever 12 provided on the retainer 9, the pin 14b is inserted in one guide groove 13, and a pin 14a inserted in the other guide groove 13 is provided on the guide block 6. A recess 27 is formed in a crossing part of both side rims of the pin support piece 26 and an inner circumferential rim of the stopper ring 20 to prevent cracking of the bent part of the pin support piece 26. COPYRIGHT: (C)2006,JPO&NCIPI
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