Automatic deep-groove-ball-bearing wear life testing machine

The invention relates to an automatic deep-groove-ball-bearing wear life testing machine. The automatic deep-groove-ball-bearing wear life testing machine comprises a frame, an axial pneumatic loadingdevice, a drive system, a motor seat, locking bolts, support feet, a motor, an oil lubricating system, a heating device, an industrial personal computer, a charge amplifier, a sensor, a loudspeaker and a data collecting and control system. The automatic deep-groove-ball-bearing wear life testing machine has the advantages that the machine is adjustable in rotation speed and load and especially applicable to the vibration measuring and wear life testing of miniature and small deep groove ball bearings; many bearing vibration parameters (such as low-frequency, medium-frequency, high-frequency and direct-frequency effective values, peak values, peak value factors and pulse number) can be measured, a vibration threshold can be set, and after the fact that a bearing reaches the wear life is determined when the measure