To provide structure of supporting a crankshaft which is provided with a needle bearing capable of restraining abnormal noise when a needle roller passes through a stepped portion of a outer ring.
The needle bearing 11 which supports a shaft portion of the crankshaft is provided with an outer ring 12 including a plurality of outer ring members 12a which are divided by parting lines extending in axial direction of the bearing, a plurality of needle rollers 13 which are disposed to make it possible to roll on track surface of the outer ring 12 and a retainer 14 including a pocket which houses the plurality of needle rollers 13. Then, the parting line of two outer ring members 12a is provided on both sides of circumferential direction in position separated from each other at 50° or more based on maximum radial load point of the structure 15 of supporting the crankshaft.
SAKAI TAKAAKI
| JP2007024143A | 2007-02-01 | |||
| JP2007085447A | 2007-04-05 | |||
| JPS6116851B2 | 1986-05-02 | |||
| JPH0272220A | 1990-03-12 |
Morishita Hachiro
Hiroyuki Yoshida
Next Patent: NEEDLE ROLLER BEARING AND CRANKSHAFT SUPPORTING STRUCTURE