PROBLEM TO BE SOLVED: To provide a radial roller bearing excellent in durability by eliminating a cause of flowing failure of lubricating oil inside the bearing.;SOLUTION: Oil-passing recessed parts 13, 13 are formed in a state to connect an inner peripheral surface and an outer peripheral surface of a holder 3c to each other on a part of a guiding surface of each of columnar parts 9, 9 to guide a rolling surface of each of cylinder rollers 2, 2 oppositely in the circumferential direction out of inner surfaces of pockets 10b, 10b formed in the holder 3c assembled in the radial roller bearing.;COPYRIGHT: (C)2009,JPO&INPIT
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