Cylindrical roller bearing mostly in larger models grease lubricated bearings

But not in the audio frequency range, and abnormal noise does not cause noise. Jarring sound and control creaking  bearings are cylindrical roller bearings shrill sound of metal friction can occur on all occasions , mostly in larger models grease lubricated bearings , and in the base oil properties more susceptible to deterioration of grease , hardly occurs when oil lubrication . In addition, more prone to winter , when the pure radial load, radial clearance prone to big occasions , and with thin section ball bearing different types of size , in a particular speed range likely to occur , both will occur continuously intermittent will appear . The outer ring raceway take special processing methods to prevent the emergence of creaks , the choice of such a high temperature bearings when necessary or appropriate to reduce the bearing radial clearance , excellent performance and improved grease and cylindrical roller bearings match mechanical rigidity. (1) Choose low-noise bearings ; This depends to buy high-quality  tapered roller bearings   bearings are generally good with high steel material , with high -density , high- resistance characteristics ;  (2) to try to eliminate part of the application from the bearing noise , is in the link above, lubricating grease , lubricating materials must be selected , you can play a multiplier effect ;  (3) avoid the host resonance , avoiding sensitive resonance speed ; this point requires professional installation to avoid resonance problems ;  (4) If the other methods ineffective, to take additional measures noise and muffler , and install some sound control equipment and so on.