Motor bearing different sound knowledge of analysis and solving - bearing

'Root cause analysis: the motor no-load running is similar as the buzzer sounds, and abnormal axial vibration motor, open or shut down from time to tome' om-ing 'voices characteristics: multiple lubrication condition is bad, and in the winter of ball bearing motor, main shaft is self-aligning performance is bad, under the influence of the axial vibration of an unstable vibration solution, with good lubricating property oil B, preload, reducing installation error C, using radial clearance of small bearing D, improve motor bearing E rigidity and strengthen of bearing mind note: play the role of substantial improvements in the first five, using small groove curvature, 02 01 big groove curvature. . 。 。 'Specific characteristics: voice frequency change with bearing rotating speed, and the parts surface waviness is the main cause of the noise. Solution: A, improve the bearing raceway surface processing quality, reduce waviness amplitude B, C, bruised and cooperate with the fixed clearance pre-tightening force, check the free end bearing operation, improve the precision of the shaft and bearing installation method, characteristics of temperature: bearing after operation, the temperature is beyond the requirements of the scope of reason analysis: A, too much grease, lubricants increases the resistance of B, the clearance is too small to cause excessive internal load friction C, D, sealing equipment installation error E, bearing the crawling of the solution: A, choose the correct grease, use appropriate B, correct clearance pre-tightening force and cooperate, check the workings of the free end bearing C D, improve the accuracy of bearing seat and installation method, improvement of sealing form 7, bearing feel bad characteristics: with the hand feel when he held A bearing rotating rotor bearing impurities inside, blocking reason analysis: A, clearance is too large, with the inner diameter and axial improper C B, channel damage solution: A, B smaller clearance as soon as possible, the selection of tolerance zone C, improve accuracy, reduce the channel damage D, selection of oils and fats