The response performance of bearing inner ring under different working conditions was analyzed according to the running dynamics characteristics of bearing HM803149.The results show that as the axial clearance continues to increase in the negative direction,the limit Angle of rollers increases and more rollers are subjected to the load until all rollers finally bear the load.After gradually increasing the load,the bearing clearance time domain waveform presents the same change,and the vibration signal voltage root mean square(RMS)of time domain waveform increases.When the rotational speed remains unchanged with clearance being-3.2 μm,the vibration acceleration changes slightly.The experimental verification shows that bearing clearance forms the same change characteristics,and RMS first decreases and then increases after gradually increasing the test bearing clearance.The research effectively improves the transmission efficiency of bearings and has a good theoretical research value.
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