Wheel-supporting bearing
AssigneeNtn Corporation
InventorsKoji Sahashi, Keizo Kobayashi
Life of this patent
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Abstract
A wheel-supporting bearing has a built-in rotation sensor which can be manufactured at low cost and which is high in mechanical strength and sealing capability at the joint portion between the rotation sensor and a harness. The rotation sensor, which is fixed to the inner ring, is made up of a stator formed by pressing, and a coil wound inside the stator. An annular plate is coupled to the back of the stator. A resin molding is fixed to the annular plate. A lead extending from the coil is connected to the harness in the resin molding. The lead is covered with a resin sleeve and surrounded by seal rings to reinforce and seal the joint portion between the lead and the harness.
Claims16
A wheel-supporting bearing comprising a rotatable bearing ring, a stationary bearing ring, a sensor rotor mounted on said rotatable bearing ring, a rotation sensor mounted on said stationary bearing ring so as to be opposite to said sensor rotor for detecting the rotating speed of said rotatable bearing ring, an annular case having a -shaped section for mounting said rotation sensor therein, an annular plate fixed to an outer end of said annular case, a resin molding mounted on said annular plate with said annular plate partially embedded in said resin molding, a lead wire extending from said rotation sensor, said annular case and said annular plate having holes through which said lead wire extends, and a harness to which said lead wire is connected in said molding.
Dependencies are inferred from the claim text.