Wheel bearing assembly, manufacturing method therefor, and calk jig

摘要

In a wheel bearing assembly, the length of an annular protrusion in an axis direction, or the oscillation angle through which the center axis of a calk jig is oscillatingly turned relative to the center axis of a constant-velocity joint outer ring is restricted so that the annular protrusion and the calk jig do not interfere with each other when the constant-velocity joint outer ring is calk-fixed to the calk fixation portion of the wheel hub by radially outwardly bending a tubular protrusion formed on an end surface of the center shaft portion through the oscillating turn of the calk jig after the center shaft portion of the constant-velocity joint outer ring has been fitted to the hollow hole of the wheel hub.