Waviness on the surface of the rolling bearing noise and its countermeasures

Although this kind of noise is essentially due to the manufacturing error, but in fact still with the choice of lubricant, the installation of the bearing condition, the precision of the shaft and bearing state. This noise and divided into two categories, maintains a sound sound and vibration lines, points above are as follows: ( 1) Maintains a sound maintains a sound and its control method is refers to the impact of severe vibration of the cage and rolling element and the cyclical vibration and noise, in pocket Kong Song and friction was easy to appear. This noise occurs mainly in ball bearings and tapered roller bearings, stamping and cage and entities cage will occur, when the use of grease or oil lubrication will happen, but when bad lubrication or lubricant used, big radial clearance, outer torque under load, and keep the bad frame structure and the precision is not high, the more likely to occur, serious when maintains a web or rivet head suddenly fracture. A bracket will be control methods of noise and vibration; Use the lubricant lubrication good performance; Reduce the installation error of bearing, Compression bearing radial clearance or is properly, axial preload and choose with good accuracy of the reasonable structure of the bearing cage, or switch to keep strong and without wear of bearing. ( 2) Grain noise and its control method of vibration marks is directly related to rolling bearing surface waviness of noise, the noise is a kind of pure tone, for constant speed, its frequency is constant, with the speed of change, and the changes of its frequency.