Patent ID: 8827564
Filing Date: 2014-09-09
Classification: F16C,Y10T

Abstract:
1. An outer ring of a tapered roller bearing, comprising: a tapered cylinder portion having a tapered raceway surface of the outer ring on an inner periphery; a radially extending portion that extends in a substantially radial direction of the tapered cylinder portion from an end portion on a small diameter side of the tapered cylinder portion; a cylindrical portion that is connected at one end to an outer end portion in a radial direction of the radially extending portion, and extends to a large diameter side in a substantially axial direction of the bearing; a center backup portion that extends from an end portion on the large diameter side of the cylindrical portion to an outer peripheral surface of the tapered cylinder portion, an only point of contact between the center backup portion and the outer peripheral surface of the tapered cylinder portion being at a substantially center portion in the axial direction of an outer peripheral surface of the tapered cylinder portion; and a large diameter side curved portion that curves to an outside in the radial direction from an end portion on the large diameter side of the tapered cylinder portion, and in which an outside diameter of an outer end surface in the radial direction is substantially the same as an outside diameter of an outer peripheral surface of the cylindrical portion, wherein the tapered cylinder portion, the radially extending portion, the cylindrical portion, the center backup portion, and the large diameter side curved portion are formed of an integral metallic plate, and wherein the substantially center portion is axially spaced from the large diameter side curved portion.