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Bearing FAG bearing nature of the noise is that the use of modern processing technology manufacturing will continue to happen, FAG bearing noise decision on the structure itself.
Essentially noise raceway sound, sound impact and jarring sound of the rolling element can be divided into three, are as follows:

(1) FAG bearing raceway raceway sound control sound when the operation of FAG Bearings, issued a rolling element raceway scroll slippery continuous sound is unique of all rolling bearings will occur Basic sound. The general sound of the bearing raceway sound and other sound. The ball bearing raceway sound is irregular, the frequency of 1000Hz or more, its main frequency does not change with the speed, but the total sound pressure level increases with engine speed to accelerate. Roller Daosheng large bearing raceway sound SPL is reduced with the increase in viscosity; small bearing raceway sound, the level in the viscosity is increased to more than about 20mm2 / s, by reducing transfer is somewhat increased. The greater rigidity of the FAG bearing raceway sound overall sound pressure level is lower. Such as the radial clearance is too small, the total sound pressure level and the main raceway sound frequency will be increased dramatically with the reduction of the radial clearance. Control raceway sound: selection of low noise FAG bearing waviness small FAG bearings, carefully selected conditions of use. The raceways sound often affect the mechanical noise to reduce the raceways sound can reduce the noise of the machinery.

The impact sound and the control method of the rolling element (2) the larger models of ball bearings or cylindrical roller FAG bearings under pure radial load low speed operation, due to the centrifugal force of the rolling bodies is smaller, in the non-load zone of the rolling body will impact cage or raceway noise. As the speed increases, the sound will disappear. The rolling impact sound control methods: appropriate to reduce the radial clearance, reasonable structure and supple cage bearing material.

(3) the FAG bearing the jarring sound and its control method jarring sound harsh sound of metal grinding sound FAG bearings may occur on all occasions, mostly in the larger models bearing grease lubrication cylindrical roller, while the base more susceptible to the oil performance degradation grease, oil lubrication hardly occurred. In addition, in the winter are more prone to radial clearance occasions, when exposed to pure radial loads, prone, and different with the model size, likely to occur within a certain speed range, both occur consecutively will intermittently appear. Outer ring raceway take special processing method can prevent jarring sound appear necessary, the choice of this FAG bearings, or appropriate to reduce the radial clearance of the bearing grease and improve the use of excellent performance and the FAG Bearings match parts rigidity.

Current use FAG Bearings can generally be divided into the scroll of FAG Bearings sliding FAG bearings; rolling FAG bearings and plain bearings works can distinguish by name rolling bearing work occurs when the friction is rolling friction, sliding FAG Bearings occurs when sliding friction; rolling friction depends mainly on the size of the precision and manufacturing; sliding FAG bearing friction material depends mainly on the size of the bearing sliding surfaces. General face of sliding FAG bearings are self-lubricating function; sliding FAG bearings in accordance with the material is divided into non-metallic sliding bearings and metal sliding FAG bearings. Non-metallic sliding bearing based, plastic bearings plastic FAG bearings are generally relatively good performance of engineering plastics; the professional manufacturers generally have the engineering plastic self-lubricating modification technology, through the fiber, specialty lubricants, glass beads, and so self-lubricating reinforced modified to achieve certain performance engineering plastic, and then use the modified plastics by injection molding into a self-lubricating plastic bearings, the global professional manufacturers Germany IGUS and the Chinese the The CSB Company. Metal sliding bearings currently in use is the three-layer composite FAG bearings such FAG bearings are generally carbon steel plate substrate sintered layer of spherical copper powder sintering technology on the plate first, and then sintered copper powder layer layer becomes 0.03mm PTFE lubricant; wherein the intermediate layer of the spherical copper major role is to enhance the bonding strength between the steel plate with the PTFE, of course, in the work, also play a certain bearing and lubrication;