ROLLING BEARING UNIT WITH SENSOR

摘要

PROBLEM TO BE SOLVED: To provide a bearing unit with sensor performing high-resolution rotation detection. SOLUTION: A sensor device 2 comprises: a resolver constituted of a rotor 8 disposed to a rotating side raceway track member 4 and a stator 7 disposed to a fixed side raceway track member 3; and a processing circuit processing signals output depending on air gap amounts between the stator 7 and rotor 8. Balls 5 of a rolling bearing 1 is used as a rotor 8, and the stator 7 is fixed to the fixed side track member 3 to face the balls 5 from an axial direction. COPYRIGHT: (C)2004,JPO&NCIPI