Rolling bearings, rolling bearing devices, double-row rolling bearings, and vehicle driving force transmission devices

摘要

PROBLEM TO BE SOLVED: To provide a rolling bearing, a rolling bearing device, a double row rolling bearing, and a driving force transmission device for a vehicle capable of supplying a larger amount of lubricating oil to a plurality of rolling elements. SOLUTION: A double-row conical roller bearing 1 has a first inner ring 31 externally fitted to a shaft portion 111 of a pinion gear shaft 11, an outer ring 2 arranged on the outer periphery of the first inner ring 31, and a first inner ring. A plurality of conical rollers 41 arranged between the 31 and the outer ring 2 and a first cage 51 for holding the plurality of conical rollers 41 at predetermined intervals in the circumferential direction are provided. The outer ring 2 has a cylindrical outer ring main body 21 on which a first outer raceway surface 21a on which a plurality of conical rollers 41 roll is formed, and lubrication extending axially from the outer ring main body 21 and scattered from the pinion gear shaft 11. The receiving portion 23 has a receiving portion 23 for receiving oil, and the tip portion 231 thereof is provided so as to project axially from the side surface 31b of the first inner ring 31. [Selection diagram] Fig. 1