Patent ID: 7497131
Filing Date: 2009-03-03
Classification: B60G,F16C,G01L

Abstract:
1. A sensor-mounted roller bearing apparatus including a bearing having a fixed bearing ring attached to a fixing part, a rotary bearing ring, and rolling elements rollably provided between said bearing rings, wherein the apparatus comprises piezoelectric elements in the form of a film interposed between said fixed bearing ring and said fixing part so as to detect loads applied between said fixed bearing ring and said fixing part, and wherein said piezoelectric elements are interposed between said fixing part and an outer periphery of said fixed bearing ring and between said fixing part and a flange integrally formed on an outer periphery of said fixed bearing ring to detect both axial loads applied in the axial direction of said bearing and radial loads applied in the radial direction of said bearing, and the fixing part and the fixed bearing ring with the integrally formed flange are separate members from each other.