Patent ID: 7798723
Filing Date: 2010-09-21
Classification: F16C,G01L

Abstract:
1. A rolling bearing assembly for a wheel comprising: a cylindrical fixed bearing ring fixed to a vehicle body side; a rotary bearing ring rotatably inserted into the fixed bearing ring; plural rows of rolling elements rollably arranged between the fixed bearing ring and the rotary bearing ring; an annular sensor housing attached to an inboard side end portion of the fixed bearing ring, wherein the annular sensor housing includes a plurality of displacement sensors that detect gaps between the plurality of displacement sensors and an outer peripheral surface of an inboard side end portion of the rotating bearing ring, the plurality of displacement sensors being arranged in a circumferential direction thereof; an inboard side seal device that seals an inboard side end portion of the sensor housing; and an outboard side seal device that seals an outboard side end portion of the sensor housing, wherein the outer peripheral surface of the inboard side end portion of the rotary bearing ring is provided with an annular sensor target, wherein the plurality of displacement sensors detect gaps between the plurality of displacement sensors and an outer peripheral surface of the sensor target, and wherein the sensor target and a seal metal core of the inboard side seal device are integrally formed.