Accurate installation of INA imported bearing noise control

INA imported bearing raceway groove sound sound and its control method is when bearing is running, rolling on the surface of the raceway of the rolling element and a line of continuous sound, is unique to occur in all bearing the basic sound. General bearing ring raceway is combined with other sounds. The rigidity of the bearing, the greater the raceway of sound pressure level is lower. Such as radial clearance is too small, the sound pressure level and the main frequency of the raceway sound can increase sharply with the decrease of radial clearance. INA imported bearing fatigue failure is a failure surface form, main performance for fatigue crack initiation, expansion and fracture process, under alternating load generated by the fault of the long-term effects of the metal. Cracks in two aspects from the bearing surface, or from the surface of the crack, the two objectives ( Part carburizing, quenching and other surface heat treatment, if after have uneven hardness, organization, and the internal stress of non-uniform and other adverse, the contact stress is generally have the opposite under the influence of ground fissure, if parts surface quality is poor, there is a defect ( Oxidation and decarburization) Poor lubrication, friction or from the surface crack. Control of raceway acoustic methods are: using low noise bearing waviness namely small import bearings, INA deliberate choice conditions of use. Race often affect the mechanical noise, reduce the raceway can reduce the mechanical noise. ( 1) Bearing raceway and robust control method is the runtime INA import bearings, sliding surface in a continuous rolling, printed with the distinctive characteristics of production base. In other words, the roller bearings with other sound overall sound. Ball rolling irregular, the above 1000 hz frequency, it will not change the main frequency speed change, but the overall rapidly increase the speed of sound pressure level. His influence of raceway, raceway sound pressure level is increasing viscosity reducing, a small roller bearing, related to the sound pressure level and improve the viscosity increase in more than 20 square mm/SEC or, decrease and increase. INA imported bearing stiffness, the greater the whole the runway minimum sound pressure level. The radial clearance is too small, angular contact ball bearing and total sound pressure level track and reduce the frequency of main radial clearance increases greatly. Control of raceway, optional low noise bearing pulse method is a small selection of conditions of use. Les wei often affect the mechanical noise, the noise reduction machine roller can reduce the noise in general. ( 2) Ball and control the ball bearing or bearing large listen to pure radial load model, the influence of the low speed running, driving in a small area of rolling load due to centrifugal force will be in a cage or raceway and the influence of the noise. But, with the increase of speed, the noise will disappear. The impact on the way to control its working capital including: decrease the radial clearance, using a rational structure is INA import bearing cage's flexibility. ( 3) Bearing dissonant noise and noise control of shock bearing, INA bearing import each of his sharp metal friction opportunities, mainly in the fat lubrication bearings in the larger model, and in the degradation of performance are more likely to have oil, oil based on any lubricating oil. In addition, the more likely to happen in winter, when pure radial load, radial clearance and special occasions vulnerable, and in a specific speed, high size of different models, 2 will also produce a continuous intermittent. Outer ring raceway specific treatment method, in order to prevent the occurrence of discord, if any, can choose the import bearings, INA or decrease the bearing internal clearance, the outstanding performance and bearing grease and matching part to improve the rigidity.