Run laps of motor bearing problem

Friend speak some enterprise, attack a group of motor bearing system, bearing chamber has obvious real clean, bearing indoor waveform spring leaf has obvious scratch. From the problem representation, belongs to the typical bearing outer ring. Today we will talk about motor bearing run laps. Bearing and shaft, the end cover role relationship between each other most of the motor adopts rolling bearing, roller bearing with inner and outer ring friction into rolling friction, the friction surfaces in is very small. Bearing and shaft, bearing and end cover with the ordinary for surplus to cooperate, a few conditions for transition fit. Each other each other's extrusion is opposite bigger, so the static friction, bearing and shaft, bearing and end cover relatively static, and rely on roller and inner circle ( Or outer ring) Rotating transfer between mechanical energy. Run laps if bearing and shaft bearing, with the bearing housing is clearance fit, the torsion would spoil sliding relative stationary state, attack the so-called 'circle', sliding bearing inner ring and shaft attack called within laps, sliding bearing outer ring and bearing chamber attack known as outer ring. Bearing run laps of the appearance of bearing and the damage if the attack run laps, bearing parts will be high temperature, vibration will be big. Dismantling check will find axis ( Bearing chamber) Appearance has scratches and groove of the shaft or outdoor table bearing grinding. From this kind of condition can determine bearings run laps. Run bearing outer ring of the negative influence on the formation equipment is very big, will intensify cooperation parts wear and tear, and scrap, and even affect the accuracy of form a complete set of equipment; In addition, due to increased friction, will put a lot of energy into heat and noise, greatly reduce the efficiency of motor. Cause the cause of the bearing run laps, 1) Fit tolerance: bearing and shaft ( Or bearing chamber) Fit tolerance has strict request, different specifications, the precision and the stress distribution and different using conditions to fit tolerance request. Once the tolerance matching problem, motor bearing run laps problem will be the quality problem of the mass. （ 2) Processing and installation accuracy: refers to the shaft, bearing, bearing chamber of machining tolerance, surface roughness and assembly accuracy and other technical parameters. Once reach the request, will affect the fit tolerance, cause bearing run laps. （ 3) The material of shaft, bearing is the key. Different kinds of bearing with phase to bearing steel manufacturing, strength, stiffness, better wear resistance, the friction coefficient of bearing alloy, such talent guarantee the normal use of bearings, reducing the possibility of a run laps. Bearing run laps common repair measures at present domestic repair bearing run laps common way for set set, pitting, welding, brush plating, thermal spraying, laser cladding, etc. Surfacing: surfacing is on the edge of the workpiece's appearance or stop deposited a layer of abrasion resistant, corrosion resistant, heat resistant performance of metal layer welding process. Mixer thermal spraying, thermal spraying is the spraying molten state information, a high-speed airflow to atomization radiation in the parts on the surface, constitutes a spray coating of a metal surface processing methods. Brush brush plating: plating is the appearance in the workpiece with electrolytic method for coating process. Pieces of laser cladding, laser cladding which is also called laser cladding or laser deposition, modification technology is a new appearance. Repair is a kind of can't choice, avoid the run laps is motor bearing manufacturer of choice.