| 摘要 |
PROBLEM TO BE SOLVED: To provide a tapered roller bearing allowing lubricating oil to flow into the inside of the bearing and capable of reducing torque loss due to flow resistance of lubricating oil. SOLUTION: An oil groove 7 passing through in the radial direction is provided on an outer side face of an inward facing collar 5a of a cage 5 to feed large amount of lubricating oil flowing into the inside of the bearing from a small diameter side of a tapered roller 4 onto an outside diameter side of the cage 5 along the oil groove 7, reduce amount of lubricating oil flowing onto an inner ring side from an inside diameter side of the cage 5, reduce amount of lubricating oil remaining in the inside of the bearing, and reduce torque loss due to flow resistance of lubricating oil. COPYRIGHT: (C)2007,JPO&INPIT
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