Compressor bearings, motor bearing lubricating oil quantity standard

Rolling bearing small friction coefficient than sliding bearing, high transmission efficiency. Due to increasing level of production automation, which can make the motor without maintenance safety running, bearing is the weak link in motor, now mostly adopts enclosed rolling bearings, small motor bearing no longer supplement after filling oil grease, normal manufacturer production of bearing can run continuously for more than two years. A common cause of bearing temperature is too high, and large vibration: may be due to the coupling is not accord with standard of process, find rotor unbalance activity, poor foundation rigidity and the anchor, rotating stall and surge. Assembly bearing repair process is simple: for roller press shaft wear and use the sauvy roller press shaft repair industrial arts 'to control the concentricity, then put the carbon nano polymer materials applied directly to a specific part of the cooperation, relying on the bearing inner ring and shaft parts cooperate relationship, to repair the matching surface, to % of the mating surface, satisfies the requirement of fastening equipment, to avoid the existence of space meet the operation requirements. Inadequate cooling insufficient cooling of the main factors are: selection of inappropriate or cooler pipe blockage, the above two factors will lead to insufficient cooling and lubricating oil can't cool, cause the bearing temperature rise. Shoulder fillet is too big or too small can cause what problem actually, made it clear in machine design teaching material: the radius is too big, round hole part of the bearing chamfer may be small, so the rounded and chamfering is interference, the bearing and the shaft shoulder depend on is not tight, use in the easy to cause vibration; Radius is too small, easy to produce stress concentration, shaft shoulder will affect the strength of the shaft. Can make the grease in the reflow temperature ( Flow backward) , do not converge on the balance beam; With excellent air tightness, high temperature resistance, chemical stability and mechanical stability; 。 For these reasons, troubleshooting measures: change the front end of the spindle bearing, using qualified grease, and adjust the bearing clearance; Qualified, spindle taper hole in surface grinding tests confirmed by coating method and the handle of the interface is not less than %; Replace the clamping device of the spring, adjust bearing preloaded force. Rules of the outer surface of the enclosure should be smooth, prevent local overheating, bearings are important parts of machinery and equipment, to protect bearings play a better performance, correct installation, operation and reasonable maintenance is very important. In a set of economic capacity and stable income, on the basis of the noise of the bearing is the bearing industry in raising the quality of bearing is an urgent need to solve the problem. When have larger axial displacement, allowing the Angle error would be reduced; Angle error can make the roller has a fixed axial displacement, makes it close to the end of which a bearing, the greater the Angle error, allowing the axial displacement should be reduced. Affect the service life of the rolling mill bearings for rolling mill bearing is an important part of a mill, in the process of mill run, held the roll bearing and under roll rolling force while maintaining the correct position of the roll, the length of the rolling mill bearing quality reliable and life directly affects the reliability of the mill operation.