Rolling road sound source is due to ring the inherent vibration after the load. Due to the rings and rolling elements of nonlinear vibration of elastic contact form system. When lubricating or when machining accuracy is not high stimulation and the inherent vibration of elastic features, passing into the air becomes noise. As we all know, even using the most highly skilled manufacturing technology of processing components of SKF bearings, its surface will always exist with varying degrees of tiny geometric errors, so that between the raceways and rolling elements produce micro-wave excited vibration inherent vibration.
SKF bearings lubrication in order to reduce internal friction bearings and friction losses, prevent burning viscosity, lubrication effectiveness as follows.
<1>. reduced friction and friction losses.
　　Constitute the bearings rings, touching parts of the rolling element and cage to prevent the metal contact, reducing friction and wear.
<2>. extension of fatigue life.
　　Rolling fatigue life of SKF bearings, rotating, rolling contact surfaces lubricated well, is extended. Conversely, low viscosity oil, lubricant film thickness is not good, is shortened.
<3>. draining friction heating and cooling.
　　Circulation to the oil law can be discharged from friction heat with oil, or by an external heat from cooling. Prevention of SKF bearings overheating, prevent lubricants's own aging.
<4>. other
　　Also to prevent foreign bodies penetrated bearings internal, or prevent rust, corrosion effects.
Lubrication method:
　　Bearings lubrication method, divided between grease lubrication and oil lubrication. For SKF bearings are a great way to work functions, first of all, to select the appropriate conditions of use, the use of the purpose of lubrication method. If only consider lubrication, oil lubrication of lubrication advantage. However, grease lubrication around bearings structure can be simplified like, compare the advantages and disadvantages of grease lubrication and oil lubrication.
Although SKF bearings Raceway noise is inevitable, however you can take high-precision machining parts surface, correct choice of bearings and precision bearings making noise damping.
Rotate, inner and outer rings of SKF bearings Raceway surface, due to the effects of scrolling and touch, and running track to the dark side, running track attached to the Raceway surface does not belong to an exception, we will load conditions, so when disassembling bearings, please pay strict attention and observation of Raceway surface running track.



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