Radial roller bearing has annular lubricant reservoir that is formed in inner surface of outer ring with respect to fixed board or bottom faces of bearing needles

摘要

The roller bearing has thin-walled outer ring (2) and bearing needles (4) that are formed in bearing (3) in circumferential direction at equal intervals, so that leading needle cage (5) is formed. An annular lubricant reservoir (17) is formed in inner surface (10) of outer ring with respect to fixed board or bottom faces (16) of bearing needles. The inner side (18) of solid rim (6) or outer side (11) of needle cage is limited through an axial side of ring sleeve. The outer side of needle cage is provided with annular lubricant reservoir (13) that is arranged beside front end faces (12) of bearing needles. An additional circumferential ring sleeve (14) is inserted into outer ring, whose inner circumferential surface is machined with respect to outer race (15).