Rolling the main reason for generating the vibration is due to the rolling bearing is rotated in under the action of the load, the rolling bearing is deformed causing vibration. A vibration of the bearing rings Rolling vibration is basically caused by the vibration of the bearing rings, with the bearing structure, rigidity, precision manufacturing, installation conditions, and the use of such factors. If the bearing inner ring raceway have larger radial corrugated, when the rotation of its inner ring bearing outer ring radial vibration. Bearing inner corrugated not only cause the radial vibration of the outer ring, and will also cause the outer ring of the axial vibration, the bearing will be subjected to axial load of the bearing, the outer ring of the axial relative position is changed, so In the bearing outer ring when the inner ring rotation will produce axial vibration mouth vibrating sieve in the job, for the high speed rotation of the bearing, since the vibration frequency caused by the bellows, may be equal to the rotational frequency of the exciter shaft, which produce the resonance. Second holding frame vibration holder vibration, is the vibration generated due to the bearing is rotated to maintain the rolling elements of the frame and the vibrating collide. Vibrating screen, along with the impact load, etc. a variety of alternating load, will cause severe vibration of the holder, the vibration is generally believed that, induced because of the rolling and maintaining the sliding friction between the frame holder since excited vibration. holder vibration mainly generated in the ball bearings and tapered roller bearing in the radial gap is too large, poor lubrication properties, vibrating sieve exciter shaft torque transmission fluctuations case prone three rolling body vibration large vibrating screen ball bearings, roller bearings, bearings mainly take radial load and low-speed rotation, will produce the whereabouts of the rolling element vibration test found when the bearing radial loads and grease poor performance next, the beginning of the operation will hear a "click Kacha sound vibration, mainly because of the rolling sound vibration from the cage collided after leaving the load area suddenly accelerated, this crash is inevitable but running for a period of time will disappear. vibrating screen radial shock loads when the bearing operation, only certain of its internal rolling element loads, radial load line of action due to the elastic contact with the ferrule constitute "spring" supporting the rolling element produce periodic vibration (shaft center is therefore meeting next move vertically or horizontally direction). especially low vibration frequency of the vibrating screen, type of vibration is more obvious. friction vibration friction vibration rolling bearing exception vibration, general friction vibration prone on a large ball bearings, lubricated by grease especially grease lubrication performance is not good, is more likely to occur. based on experiment and observation, the rolling bearing friction and vibration generated is often a direct relationship with the lubricant nature. bad or dirty lubricant performance, prone to friction vibration, but also with Rolling outer raceway processing related to the quality of this special precision machining, are better able to control friction and vibration rolling bearing vibration is often the result of the role of these various types of vibration tests showed that, in the case of the bearing is operating normally, the surface waviness of the bearing parts are the main factors causing the bearing vibration.