| 摘要 |
PROBLEM TO BE SOLVED: To supply sufficient lubricating oil to a sliding contact part between a large collar part and a large end surface of a tapered roller without changing even an assembling method of a bearing without applying complicated processing to inner-outer rings. SOLUTION: A collar ring 6 of a separate body having the large collar part 6a for regulating the movement in the axial direction of the tapered roller 4 on the inner diameter side more than a pitch diameter, is fixed to the bearing box 12 side, and a clearance is formed between an inner diameter surface of the large collar part 6a of this collar ring 6 and an end part outer diameter surface of the inner ring 2. The sufficient lubricating oil can be supplied to this sliding contact part without changing even the assembling method of the bearing without applying the complicated processing to the inner ring 2 and the outer ring 3 by introducing the lubricating oil delivered toward the clearance from an oil delivery hole 7 to the sliding contact part between the large collar part 6a and the large end surface 4a of the tapered roller 4 by arranging the oil delivery hole 7 for delivering the lubricating oil toward the clearance in the collar ring 6. COPYRIGHT: (C)2007,JPO&INPIT
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