| 摘要 |
PROBLEM TO BE SOLVED: To provide a roller bearing cage capable of preventing the occurrence of striking scars in rollers, and to provide a roller bearing.SOLUTION: A roller bearing cage 10 according to the present invention includes a small-diameter annular part 11, a large-diameter annular part 12, and a plurality of column parts 13 installed between both annular parts 11, 12. At one end 13a of each of the column parts 13, a caulked portion 21 is formed connecting the column part 13 and the large-diameter annular part 12. The large-diameter annular part 12 has protruded portions 31 protruded axially inside of respective projections 20 from an axial inside face 12a to form predetermined clearance spaces T between an end face 4a of each of tapered rollers 4 and each of the projections 20.SELECTED DRAWING: Figure 3 |
