Patent ID: 7334515

Claim:
A roller bearing, comprising: a plurality of rollers which are provided between an outer circumferential surface of an inner member and an inner circumferential surface of an outer member; and a substantially cylindrical roller holder which has a plurality of pockets holding the plurality of rollers, respectively, such that each of the rollers is rotatable about an axis line thereof, and which is rotatable around the inner member, wherein a sign of a skew angle of said each roller is constant irrespective of how much said each roller is inclined relative to a corresponding one of the pockets in a circumferential direction of the roller holder, wherein one of an inner circumferential surface and an outer circumferential surface of the roller holder defines a guided surface which fits on a corresponding one of the outer circumferential surface of the inner member and the inner circumferential surface of the outer member, so that the roller holder is positioned in a radial direction thereof, and wherein at least the guided surface comprises a tapered surface whose diameter gradually increases in a direction from one of axially opposite ends thereof toward an other of the axially opposite ends.