Patent ID: 8015903
Filing Date: 2011-09-13
Classification: B23B,Y10T

Abstract:
1. A method for cutting the braking surface of a brake rotor-equipped wheel bearing device, the brake rotor-equipped wheel bearing device comprising an outer member having a car body attaching flange at the outer periphery, an inner member having a wheel attaching flange at the outer periphery, a plurality of rows of rolling bodies between said inner and outer members and rotatably supporting the inner member, and a brake rotor attached to said wheel attaching flange, said method comprising assembling the wheel bearing device so as to be mounted to a car body via the car body attaching flange at the outer periphery of the outer member and via inserting a spline shaft in a spline hole in a hub ring and threadedly engaging a nut with a threaded portion of the front end of the spline shaft, subsequently to assembling the wheel bearing device, finish-cutting the end surface of a wheel pilot formed in the inner member, and attaching the brake rotor to the wheel attaching flange, whereupon the braking surface of the brake rotor is cut with the wheel pilot outer diameter gripped relative to the end surface of the wheel pilot.