DEVICE FOR DIAGNOSTICS AND REJECTION OF BALL BEARINGS Russian patent published in 1995 - IPC

FIELD: ball bearing industry. SUBSTANCE: device comprises a flexibly-mounted mandrel for mounting the outer race of the bearing, a base capable of rotating around a certain axle and being fixed in any position, a frequency control unit for changing the rotation speed of the inner race, an adjusting means with two degrees of freedom for moving the bearing and applying axial and radial loads thereto, and a vibration-and-noise-measuring apparatuses. The inner race is driven by a multiphase electric winding encompassed with a certain gap by the inner race. EFFECT: process of bearing diagnosis is brought closer to real operating conditions and diagnosing accuracy is increased by applying axial and radial loads to bearing under test, possibility to change its rotation speed, and rotating the inner race instead of outer one. 1 dwg