To reduce a drive torque and damp vibration induced by a rolling bearing part.
In the split type rolling bearing 10, an outer ring 11 and a cage 12 are equally split into two in the circumferential direction. The split type rolling bearing 10 is equipped with the rolling bearing part 13 and sliding bearing parts 14. The rolling bearing part 13 is rollably held by a pocket part 12a of the cage 12, and rotatably supports a crankshaft 1 via a plurality of rollers 15 rolled on a raceway surface 11a of the outer ring 11. The raceway surface 11a of the outer ring 11 is formed in the substantial center in the axial direction on the inner peripheral face. Further, the sliding bearing parts 14 are provided to protrude by a predetermined amount toward the inner peripheral side on both sides in the axial direction to sandwich the raceway surface 11a of the rollers 15 on the inner peripheral face of the outer ring 11. The crankshaft 1 is rotatably supported by bringing each of tip end faces 14a into sliding contact with the crankshaft 1.
COPYRIGHT: (C)2007,JPO&INPIT
Hironori Honda
Toshimitsu Ichikawa
Takeshi Takamatsu