Refrigeration compressor bearing is broken? What kind of can also repair? What have to throw? - bearing knowledge

How to determine the bearing can use again and need to change the defect of the bearing can judge bearing used again, according to the bearing damage level, mechanical properties, importance, and operating conditions, the factors related to inspection cycle to decide. But check if found any of the following defects, the bearing can't continue to use, need to replace new bearing. A, the inner ring and outer ring, rolling body, insist in any one have crack or gap. B, ring, rolling body of a fracture. C, rolling surface, guard, has obvious scratches on rolling element. D, or rivets loose obviously. Stick to wear is obvious. E, raceway surface, rust or scar on rolling element. F, raceway surface and rolling body has serious indentation or bruised. G, inner ring diameter or outer diameter surface has obvious creep. H, and obvious discoloration due to overheating. I, seal in the bearing sealing ring of the grease or dust cover seriously damaged. Bearing comprehensive repair? The comprehensive repair including of the bearing damage after cleaning, disassembly, inspection, bearing roller grinding or replace inside and outside the circle, the new rolling system build/original grinding roller, roller replacement, assembling, clearance adjustment and strict inspection packing and so on comprehensive repair procedures, to ensure that after repair of bearing can meet the performance requirements of the new bearing. What kind of bearings can be repaired? Bearing comprehensive repair mainly for the large size of rolling bearings (high relative product cost Such as transmission bearings, work roll bearings, bearing roller bearing and roller mill bearings, etc. ) 。 Of course, small aperture bearing is also can be repaired. Repair technical difficulties if bearing repair what exists in the technical difficulty. Basically can think, as long as it is rolling bearing can be repaired. In need of repair of bearing installation size we don't do change, because if you change its installation dimensions, the bearing cannot be installed properly. However, because of repair required some machining processing, bearing on the size of internal there must be a change, we can through the other way, the grinding quantity compensation. After repair of bearing can really be good as new? However, after the repair of bearing can really good, such as the new? Baosteel staff, we have our own a set of test methods. After repair of the bearing and the new bearing by test showed that no difference. At present, many industrial enterprises on the bearing repair has become an international ( Including steel, metallurgy, energy, paper making, cement, airlines and car racing, and many other industries) The important measures to reduce costs, and the bearing repair for their decreased production equipment running cost, save the production equipment bearing purchasing cost can reach 20% 90%. Cause bearing damage is not all of the bearing damage can be repaired, but for each of the damage of bearing before you consider to repair or replace new bearing, must be the reason and degree of damage assessment in order to avoid or reduce the damage once again. Bearing damage caused by many reasons, such as improper installation, filth from invading as well or water intrusion is a lot of bearing a common cause of early damage. Here are some of the large size bearing and the corresponding analysis of the causes of the common damage can extend the life of the bearing of preventive measures. 1, improper installation, operation or disassembly improperly may cause deformation of cage or defect prevention measures: use the appropriate operation, installation and removal tools. 2 lubrication inadequate lubrication inadequate or inappropriate may result in components abrasion or serious bearing deformation preventive measures: improve the lubrication system, properly supplement or replace lubricant regularly. 3 touch water can lead to rust and corrosion pitting bearing elements and rust. After corrosion damage of bearing can lead to spalling preventive measures at work: regular inspection seal, ensure good sealing effect, correct storage bearing. 4 current bearing rotates the electricity may result in a groove or notch. Bearing static, electrical grounding improper operation will lead to a slight burn prevention measures: outside of bearing parts before welding current can be reduced or avoided through proper grounding connection by bearings. Five external material wear particle pollution and debris intrusion can lead to bearing face precautions: wear, abrasion and sag into particles and debris, replacement of lubricants, check the sealing system. 6 eccentric eccentricity, inclination, or excessive load may result in geometrical stress concentration or surface spalling preventive measures: precision machining housings and shoulder.