To provide a ball bearing where an engagement claw of a retainer made of a synthetic resin is hardly worn even in a high-speed rotation range.
This ball bearing has the retainer 4 made of a synthetic resin so structured that hemispherical pockets 7 for housing a ball 3 are formed on facing surfaces of two annular bodies 6a and 6b axially facing to each other at an equal interval in the circumferential direction; axially projecting engagement claws 8 are formed between the pockets 7, 7 adjacent to each other of the annular bodies 6a and 6b; and engagement holes 9 for engaging the engagement claws 8 therewith are formed between the adjacent pockets 7, 7 of the annular bodies; wherein the ball 3 between an inner ring 1 and an outer ring 2 is retained by the retainer 4 made of a synthetic resin. The difference δ between the diameter A of the pocket 7 and the diameter B of the ball 3 is set to 1.0-5.0% of the ball diameter B.
| JP3684642 | RETAINER FOR ROLLER BEARING |
| JP6606201 | Cage for ball bearings and ball bearings |
| JPH068821 | [Name of device] Crown cage |
TANAKA HIDEAKI
| JP2004076778A | 2004-03-11 | |||
| JP2003343567A | 2003-12-03 | |||
| JP2000205269A | 2000-07-25 | |||
| JP2003343571A | 2003-12-03 |
Higashio Masahiro
Torii Kazuhisa