JP2009002480A5 - - Google Patents

Claims (2)

A stationary flange for supporting the suspension device on the outer peripheral surface, an outer ring having a double row outer ring raceway on the inner peripheral surface, and a wheel on a portion of the outer peripheral surface protruding axially outward from the outer ring. A rotation side flange for supporting the first inner ring raceway in the portion facing the outer ring raceway on the axially outer side of the double row outer ring raceways, and a spline hole provided in the center. The inner ring member is engaged with the second inner ring raceway at the axially intermediate portion of the outer peripheral surface, the housing portion serving as the outer ring of the constant velocity joint at the axially inner end portion, and the spline hole with the spline hole at the axially outer end portion. A second inner ring member having a spline shaft, and a plurality of rolling elements provided between each of the outer ring raceways and the first and second inner ring raceways, the spline hole and the spline. Spline engaged with the shaft And at least of the cylindrical portion provided at the axially outer end portion of the spline shaft in a state where the axially outer end surface of the housing portion and the axially inner end surface of the first inner ring member are in contact with each other. A portion protruding from the axially outer end surface of the first inner ring member is formed into a caulking portion by plastically deforming radially outward, and the first inner ring member is sandwiched between the caulking portion and the housing portion. A method of manufacturing a wheel bearing rolling bearing unit for coupling the first inner ring member and the second inner ring member,
The front end surface or bearing surface of the load load jig was abutted against the surface facing inward in the axial direction in a part of the housing part, and the axially outer surface of the rotating flange was pressed against the bearing surface or load load jig. A method for manufacturing a wheel-supporting rolling bearing unit, wherein the caulking portion is formed by abutting a caulking jig against the axially outer end portion of the cylindrical portion. The manufacturing method of the rolling bearing unit for wheel support described in Claim 1 whose surface which abuts the front end surface or bearing surface of a load load jig | tool is a back end surface of a housing part.