Patent ID: 9097285
Filing Date: 2015-08-04
Classification: F16C,G01P

Abstract:
1. A magnetic encoder type hub bearing unit comprising: a hub bearing to be fixed to a hub of a vehicle wheel; a knuckle fixed to the hub bearing; a cap coupled to the knuckle to define an inner space in which the hub bearing is placed, the cap comprising an outer case and an inner case made of a steel material and fixed to the outer case, the inner case comprising an inner surface facing the inner space, the outer case defining an opening through which the inner case is exposed; an encoder fixed to the hub in the inner space while being spaced from the inner surface of the inner case; and a wheel speed sensor (WSS) fixed to the cap and comprising a sensor head portion extending through the opening toward the encoder such that the inner case is interposed between the encoder and the sensor head portion, wherein the sensor head portion contacts the inner case.