The cause of imported FAG bearing heating method - bearing knowledge with simple maintenance

FAG import bearing installation askew, can cause ball is not in the correct position of the bearing raceway rolling, and even cause larger ball end face and FAG import bearing seat inside and outside the circle block of axial force, the bearing temperature. The situation of the bearing is not straight screening fee kung fu, the limestone crusher bearing heating LY company is this kind of situation, the solution is to dial indicator on the shaft, the clock hit the FAG import bearing outer ring end face, face runout check one week, the general face runout value control in 0. 05. Also can use a feeler check directly FAG import bearing clearance around the sides. FAG import bearing inner hole with the shaft with the use of base of cylindrical hole system bearing and bearing hole with using the basic shaft system. General shaft under normal load and imported FAG bearing inner race, USES the j5, js5, js6, k5, k6, m6, FAG import bearing hole and bearing seat adopts j6, j7 to cooperate. Rotating seat, usually USES the interference fit, can avoid a seat under load effect on the diameter of axle and bearing hole of the rolling and sliding on the surface. But sometimes due to the size of the diameter of axle and bearing hole measurement inaccuracy or cooperate with surface roughness, do not meet the standard requirements to cause excessive interference fit, the bearing race is being squeezed from a large, leading to FAG bearing radial clearance of imports, to rotate the FAG bearing import difficulties, fever, wear or jammed, caused serious bearing inner and outer race in cracking during installation. Not rotating seat clearance or interference is often used not to cooperate, so not rotating seat is likely to produce tiny creep, and make the seat and the contact surface of roller changing, seat ring raceway wear uniform. At the same time also can eliminate axial elongation with heat and make the FAG import occurred in rolling element bearing axial stuck phenomenon. Clearance fit, but too much will make not rotating seat with roller rotation, the axis ( Or bearing hole) And the inner race ( Or the seat) Serious wear and tear, and appear friction vibration fever, FAG import bearings. 1 rolling bearing low accuracy. The solution: regulation precision grade FAG of imported bearings. 2 different heart main shaft bending or casing hole. Solution: repair spindle or box. 3 belt too tight. Solution: make the elastic of the belt can be adjusted properly. 4 bad lubrication. Solution: use the provisions, brand of lubricating materials and proper cleaning. 5 assembly quality is low. The solution: improve the assembly quality. 6 scroll FAG import bearing inner shell run laps. Solution: replace the rolling wear FAG import bearings and related parts correcting impeller balance hole diameter and checking static balance value 7 axial force is too big. The solution: cleaning, 0 is seal ring clearance requirements. 20. 3 mm. 8 damage of rolling bearing. Solution: replace the FAG rolling bearings.