A DRIVING WHEEL BEARING AND MANUFACTURING METHOD THEREOF

摘要

Disclosed are a driving wheel bearing and a method for manufacturing the same. The driving wheel bearing comprises: a wheel hub fastened to be rotated integrally with a wheel; an inner race combined to be rotated integrally by being inserted into the wheel hub; an outer race for rotationally supporting the wheel hub and the inner race by accommodating the wheel hub and the inner race inwards; a rolling element interposed between the outer race and the wheel hub and the inner race; and a constant velocity joint connected to be rotated integrally through the medium of a face spline with the wheel hub or the inner race in order to transmit power of an engine to the wheel. Each of face splines of the wheel hub and the constant velocity joint is formed to radially extend a tooth form with the same size and a tooth groove with the same size respectively, and formed to have a structure arranged to be alternately continued in a circumferential direction. Therefore, rotary power of an engine can be smoothly transmitted through a wheel bearing to a wheel.