Fag bearing vibration damage of the four reasons and necessary care measures

Fag bearing vibration in the production of ordinary, rolling bearing itself does not produce noise. Often think of to 'bearing noise' is in fact the bearing directly or indirectly, with all round structure vibration sound effect. This is why many in the noise could be seen as a hit to the vibration problems of the application of the bearing. （ 1) Due to load several qualitative change roller vibration: when a load on a fag bearing radial load, the number of rolling element bearing load will be a slight change in the operation, which make up the direction of the load deviation. The resulting vibration is not to prevent, axial preload to ease, but after loading in each rolling body ( Do not apply to the cylindrical roller bearing) 。 （ 2) The damage: due to error operation or unit, small local fag bearing raceway and rolling body may be damaged. In operation, rolled the damaged bearing parts will produce a particular vibration frequency. Bearing vibration frequency analysis are recognized the damaged parts. This principle has been used in the condition monitoring equipment, used to detect bearing damage. If you want to calculate the bearing frequency, please see the application 'bearing frequency'. （ 3) The precision of the related parts: between the fag bearing ring and the bearing or the shaft under the condition of the reamer, bearing ring with adjacent components are likely to match the shape and deformation. If appear deformation, can produce vibration in the operation. （ 4) Pollutants: if operating in the environmental pollution, impurities may enter the bearing and roller compaction. The vibration level depends on the number of impurity particles crushed, size, and composition is not a typical way of frequency, but to be able to hear a disturbing noise. The cause of the rolling bearing noise compared complex, one is the bearing inner and outer appearance and wear. Due to the wear and tear, destroyed, fag bearings and shaft bearing and shell cooperate relationship, invite axis deviation from the correct position, when axis at high speed movement produces sound. Metal flake when bearing fatigue, its appearance, also can produce sound make bearing radial clearance increases. In addition, the lack of bearing is smooth, dry friction, and bearing broken etc all make abnormal noise. Bearing wear loose after kuang, adhere to the looseness damage, also can produce sound. 1, bearing the: care for as long as possible in good condition to maintain fag bearing performance, originally should be care and maintenance, in order to prevent accidents from already, to ensure the operation of sex, consumer and economy progress. Enjoy the best conditions of mechanical operation of the corresponding operation specification, stop on a regular basis. Content includes monitor running status, supplement or a change in smooth agent, sealed, check regularly. Points for maintenance operation, have a fag bearing rotating the sound, vibration, temperature, state of smooth agent and so on. 2, bearing maintenance: bearing cleaning: removing bearing under repair, the appearance of the first recorded fag bearing, confirm the residual stock of smooth agent, sampling inspection with the smooth agent, after washing the bearing. Common use gasoline, kerosene as a cleaning agent. Tear open come down to the bearing cleaning, rough washing and fine washing, respectively in the container, put a metal mesh bottom first, make the bearing is not direct contact with dirt from the container. Coarse when cleaning, if to spin bearing with dirt, can damage the bearing rolling surface, should be pay attention to. In coarse clean oil, use brush clean up to smooth grease, adhesive, after clean, roughly into fine cleaning). Fine cleaning, bearing side rotation in the wash oil, serious cleaning. In addition, cleaning oil often should insist on cleaning. 3, bearing maintenance and discriminant: removed in order to distinguish the bearing can be able to use, check in fag bearings after washing clean. Check the raceway surface, rolling surface, cooperate with the state, adhere to the wear condition, the increase of the bearing clearance and has nothing to do with dimension precision landing damage, abnormal. Non separation small ball bearing, the extent of support to inner ring with one hand, rotate the outer ring can confirm fluently.