The influence of vibration and temperature on the INA bearing damage

INA bearings, roller and inner circle ( Or outer ring) By load is not constant, but changing as the bearing running again. The load for the alternating load; And because of roller and inner circle ( Or outer ring) Contact area is small, makes the contact stress is very big, under the high speed, in great alternating contact stress under the action of repeated many times, metal fatigue will occur. , visible tiny cracks in the area of stress concentration, due to the effect of lubricating oil and the corrosion of the metal, make the crack expanding gradually, when expanded to a certain degree, the surface metal flake will produce, form small pit, similar pitting, we in overhauling bearing, often found in or outer ring and roller surface pitting and flake pieces of metal, this is the phenomenon of metal fatigue spalling. INA bearing fatigue spalling if the bearing occurs after long time operation, shall be deemed to be the natural damage, if, at the early stage of the bearing the use of the medium-term or shall be deemed to be the natural flake, then, should find out the reason of spalling. That unnatural flaking due to bearing type was the main cause of poor choices or due to improper installation, etc. ( 1) Due to improper bearing type selection of peeling off in a large axial load under the condition of using deep groove ball bearing, may occur early spalling. Spalling occurs mainly in the race, it makes the roller rolling path to put the ball mouth direction, even rolled ball mouth, finally make serious peeling raceway damage. Prevention measures of the damage is according to the bearing working conditions reasonably choose bearing. In the process of INA bearings use, to say the vibration and temperature on the influence of the bearing is very big, let's look at some of the bearing vibration on the influence of INA bearings. Vibration of the bearing damage is quite sensitive, peeling, indentation, rust, crack and wear will be reflected in the bearing vibration measuring. So, through the use of special bearing vibration tester ( Frequency analyzer, etc. ) Can measure the size of the vibration, through frequency points cannot deduce the abnormal situation. Measured values of bearing or sensor installation position and different using conditions, thus requiring prior to each machine is analyzed by the measured value of the determined after judgment standard. We then look at the influence of temperature on the bearing. With high temperature often said INA bearings is in abnormal situation. High temperature also harmful to the bearing lubricant. Sometimes overheated bearings can be classified to the bearing lubricant. If the bearing temperature for a long time even the transfer of more than 125 ℃ lower bearing life. The causes of high temperature bearing include: lubrication inadequate or excessive lubrication, the lubricant. Contains impurities, heavy load, bearing damage, clearance, high friction and oil seal and so on. So the continuity of bearing temperature monitoring is necessary, whether measured bearing itself or other important parts. If it is on the basis of the operating conditions, the temperature change of any fault has occurred. Regular bearing temperature measurement by using a thermometer, digital thermometer, for example, can be precisely measured INA bearing temperature and the constant unit in accordance with ℃ or Fahrenheit display. The importance of bearing, means that when the damage cause of equipment downtime, so this type of bearings shall be equipped with best temperature probe.