To provide a manufacturing method for seal rings of a shell-type needle roller bearing with a seal ring which can easily be assembled by dispensing with direction property of the bearing and control an amount of penetrated lubricant at an approximately equal level in spite of flow directions of the lubricant.
The shell-type needle roller bearing 30 with a seal ring includes a shell 31 having a raceway 31a on the inner peripheral surface and a pair of inward flange sections 31b, 31b on both ends, respectively, a retainer 32 having a plurality of pockets 32a in the circumference, a plurality of needle rollers 33 retained in respective pockets 32a to be freely rotatable along the raceway 31a, and a pair of seal rings 34, 34 with a cylindrical shape arranged between both end faces 32b, 32b of the retainer 32 in the axial direction and the pair of inward flange sections 31b, 31b inside the shell 31.
| JPS6297353A | 1987-05-06 | |||
| JP2005297009A | 2005-10-27 | |||
| JPH07124672A | 1995-05-16 | |||
| JP2000326032A | 2000-11-28 | |||
| JPS6483920A | 1989-03-29 | |||
| JPH06294418A | 1994-10-21 | |||
| JP2000291669A | 2000-10-20 | |||
| JPH0623776Y2 | 1994-06-22 |
Hironori Honda
Toshimitsu Ichikawa