There was a scar status INA thrust ball bearing installation processing measures

INA bearings during the installation process, if the installation way or method is undeserved, can cause thrust ball bearing in the installation and removal, cause on the surface of the bearing raceway surface and rolling bearing appear linear scars. A scar is mainly because the cause of the bearing when installation, disassembly, bearing inner ring and outer ring tilt; Or the impact load in the process of installation and removal. Thus cause bearing a scar. So, in order to avoid bearing a scar, in addition to install or remove in the process of using appropriate tools, but also use the punching machine and to prevent the impact load of INA bearings, and also note the mutual centering during installation. Damage status: the so-called card wounded because of the sliding surface of tiny burns department summary and the surface damage. Slide surface, move surface circumferential direction linear scars. End of the roller set linear scar near the end of the roller shaft torus card. Reason: too much too much load, preloading. Bad lubrication. Foreign body nip. The inner ring of the outer ring tilt, the deflection of shaft. The precision of shaft, bearing box. The size of the measures: check the load. Preloading is appropriate. Improve lubricant and lubricating method. Check the shaft, the precision of the bearing housing. Fracture damage status: fracture refers to because of groove wheel rim or roller Angle of local authorities are exerted impact or excessive load fracture and small department. Reason: when installation has taken a knock. The load is too large. Using bad fall, etc. Measures: to improve the installation method ( Adopt the hot charging, using the appropriate tool holder) 。 Correct the load. Bearing installed, supporting to guard. The crack, crack damage status: crack refers to the raceway or move body crack damage. If continued use, also will include the development of the crack. Reason: greater than surplus quantity. Too much load, impact load. Stripping. Because of raceway contact of wheel and install components of fever and micro vibration wear. Fever caused by creep. The cone shaft taper Angle. Axis of the cylindricity. Steps of the shaft radius is bigger than INA bearing chamfer and cause interference with bearing chamfer. Appropriate measures: interference quantity. Check the load. Improve the installation method. The shape of the shaft to appropriate.