Patent ID: 8439568
Filing Date: 2013-05-14
Classification: B60B,F16C,G01L

Abstract:
1. A sensor equipped wheel support bearing assembly for rotatably supporting a vehicle wheel relative to a vehicle body structure, comprising: an outer member having an inner periphery formed with double row rolling surfaces; an inner member having rolling surfaces formed therein in face-to-face relation with the rolling surfaces in the outer member; double row rolling elements interposed between those opposed rolling surfaces; a sealing device to seal each of opposite ends of a bearing space delimited between the outer member and the inner member; a sensor unit fitted to one of the outer and inner members, which serves as a stationary member, through first and second fitting members and including a sensor mounting member and at least one or more strain sensors fitted to the sensor mounting member; and a sensor signal processing circuit provided in the sensor mounting member to process an output signal from the strain sensor, wherein the sensor mounting member is of a L-shaped configuration having a radially extending portion to extend in a radial direction and an axially extending portion to extend in an axial direction, wherein the sensor mounting member includes a first contact fixing portion adapted to be fixed to the first fitting member in contact therewith and a second contact fixing portion adapted to be fixed to the second fitting member in contact therewith, wherein the first contact fixing portion is provided at the radially extending portion and the second contact fixing portion is provided at the axially extending portion, and wherein the radially extending portion has a lowered rigidity as compared with that of the axially extending portion, wherein the strain sensor is arranged in a sensor mounting surface, which is an inboard side surface of the radially extending portion, at a location radially inwardly of the first contact fixing portion.