INA whole eccentric bearing lubrication of rolling noise actual effect

Raceway acoustic source lies in the inherent vibration caused by 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. INA bearing lubrication purpose is to reduce the bearing internal friction and the friction losses, prevent burning stick, its lubrication effect is as follows. < 1> 。 Reduce friction and friction losses. In the form of bearing ring, rolling body and touch each other part of the retainer, prevent metal contact, reduce friction and wear. < 2> 。 Extend the fatigue life. Fatigue life of rolling bearing, in the rotation, good lubrication performance of the rolling contact surface, are extended. On the contrary, the oil viscosity is low, the thickness of lube film is not good, is shortened. < 3> 。 Discharge the friction heat and cooling. Circulation method to oil and so on can oil discharge by the friction heat, or by an external sound of heat, cooling. Prevent overheating INA bearing, prevent aging oil itself. < 4> 。 Other also has to prevent foreign matter into the bearing internal, or to prevent rust and corrosion effect. Methods: lubricating bearing lubrication method, divided into grease lubrication and oil lubrication. In order to make the INA bearing function well, first of all, to choose suitable for conditions of use, the purpose of lubrication method. If only consider lubrication and oil lubrication. Grease lubrication, however, have can simplify the whole eccentric bearing the surrounding structure specialty, compare the pros and cons of grease lubrication and oil lubrication. Although the INA bearing raceway noise is inevitable, but can take work surface precision machining parts, the correct selection of bearing and precise use of bearing noise vibration reduction. INA bearing a rotation, inner ring and outer ring raceway surface, with rolling body is rolling contact, as the dark side, thus orbit trajectory are attached to the raceway surface does not belong to abnormal, which can be learned that load conditions, so when removing the eccentric bearing, please keep close attention and observation on the surface of the raceway.