| 摘要 |
PROBLEM TO BE SOLVED: To effectively prevent the generation of noise in a ball bearing used in a required bearing clearance, by increasing the grease storing capacity by a means not affecting grease supply work, to eliminate the factor of noise as a ball in a non-load zone generates the noise in shortage of grease. SOLUTION: Grease storage grooves 7 are formed along both sides of a rolling groove 4 of an outer ring 2, outer peripheral edges of grease storage members 9, 9 are fixed to both end parts of an inner-diameter face of the outer ring 2, a minimum inner diameter of the inner peripheral edges of the grease storage members 9, 9 is determined to be PCD of the bearing or near the same, and the grease supply clearance 11 is formed between the inner peripheral edge and an outer-diameter face of an inner ring 1. COPYRIGHT: (C)2005,JPO&NCIPI
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