Patent Number: 7,612,556

Title: Rolling bearing

Abstract: The rolling bearing apparatus of the present invention comprises a rolling element, a non-rolling element disposed concentrically with the rolling element, and a rotation detector for outputting an input exciting voltage by converting it to an induced voltage according to the relative rotation state of the rolling element and the non-rolling element. The rotation detector comprises a rotor provided in the rolling element, a stator provided in the non-rolling element, and an exciting winding and output windings being wound to the stator. The output windings induce a voltage according to the gap permeance between the rotor and the stator in response to the exciting voltage inputted to the exciting winding.

Inventors: Inoue; Masahiro (Osaka, JP)

Assignee: Koyo Seiko Co., Ltd.

International Classification: G01B 7/30 (20060101)

Expiration Date: 1/03/02017