Is a standard bearing failure of elimination, testing noise

Bearing failure of elimination, detection of noise is a standard operation, the raceway acoustic source lies in the inherent vibration caused by the ring after exposure to the load. Because of the ring and rolling body elastic contact nonlinear vibration system. When lubrication or the machining accuracy is not high will stimulate the related to the elastic characteristics of natural vibration and passed to the was noise in the air. As is known to all, even if is to use the contemporary the most advanced manufacturing technology and processing the eccentric bearing parts, there will always be the working surface of varying degrees of tiny geometric error, thus make the raceway and rolling body produces slight fluctuations inherent vibration excitation vibration system. Below is the new Shanghai yuan machinery summed up some experience and reference for friends. 2: is caused by moving parts contact each other collision of forced vibration, both on and off because not ideal spheres, roller sports channel contact path is not a perfect circle ( Roundness, waviness) Of smooth surfaces, rolling surface is not ideal, Roughness) And rolling element and cage in the collision in the movement and the impurities in the lubricant of forced vibration, vibration and noise have a close relationship. For general bearing, it is suggested that focus on the limited human and financial resources to improve the quality of bearing vibration control. Unfavorable to set up quality standards that noise according to the overseas to check, of course, for special products, such as computer hard disk drive system, video CD drive system of the bearing, is not convenient to use vibration assessment, noise measurement standards can be set to the inspection. Bearings, comfortable and durable, www。 txgzzc。 com)