Patent ID: 8360656

Claim:
A bearing apparatus for supporting a shaft to a housing, the bearing apparatus comprising: two split outer ring halves disposed in close contact with each other within a supporting hole of the housing; and a plurality of rollers which are rollably disposed on inner surfaces of the split outer ring halves for supporting the shaft, wherein a circumferential end of each of the split outer ring halves has a concave-and-convex shape including a first slope portion inclined with respect to a line extending along an axial direction of the split outer ring halves and a second slope portion inclined in an opposite direction to that of the first slope portion, wherein each of the rollers is provided with crowning so as to be shaped in a barrel form, and an amount of said crowning is set such that an apex of a projecting portion at the concave-and-convex shape of each of the split outer ring halves is located on an axially outer side of a rolling surface of said each of the rollers rolling on an inner peripheral surface of each of the split outer ring halves, and wherein the amount of said crowning is set such that a distance, perpendicular to an axis of said each of the rollers, between a peripheral surface of said each of the rollers opposing the apex of the projecting portion and the inner peripheral surface of each of the split outer ring halves is greater than an amount of radial offset between the split outer ring halves at the apex, said radial offset being greater than zero.