ROLLING BEARING FOR INVERTER-DRIVEN MOTOR, AND INVERTER-DRIVEN MOTOR

摘要

PROBLEM TO BE SOLVED: To provide a rolling bearing for an inverter-driven motor at low cost, in which the thickness of an oil film is maintained in a stable manner in a predetermined range and the withstand voltage can be controlled, and thereby the discharge due to the shaft voltage of the inverter-driven motor is prevented and electrolytic corrosion can be suppressed.SOLUTION: In the rolling bearing for an inverter-driven motor, a root mean square roughness of a raceway surface of at least one of an inner ring and an outer ring is 4 to 16 nm, and an oil film parameter Λ in steady operation is at least 17.5.