ROLLING BEARING DEVICE HAVING STRUCTURE ARRANGING DRIVE UNIT BETWEEN CONTACT ANGLES AND ROLLING BEARING DEVICE HAVING STRUCTURE ARRANGING DRIVE UNIT WITHIN BEARING WIDTH

摘要

PROBLEM TO BE SOLVED: To provide a rolling bearing device suitable for preventing wrong detection by a rotary sensor when a moment load is applied thereto.;SOLUTION: A thin motor 100 consists of a cross roller bearing 14 having an inner ring 14a and outer ring 14b, a stator 22 supported on the inner ring 14a, a rotor 12 supported on the outer ring 14b, a motor part 16 for imparting rotation torque to the rotor 12 and a resolver 30 for detecting a rotation angle position of the rotor 12. The resolver 30, the cross roller bearing 14 and the motor part 16 are arranged on the same plane in a radial direction in this order from a radial inside. The motor part 16 is arranged between a straight line L₁ extending in a direction of the contact angle ₁ from the top O of the contact angle and straight line L₂ extending in a direction of the contact angle ₂ from the top O, wherein the gap surface thereof is placed within a range of the bearing width of the cross roller bearing 14 in the axial direction.;COPYRIGHT: (C)2009,JPO&INPIT