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(1) Before the bearing is assembled, the bearing position must not have any dirt.
(2) When assembling the bearing, a layer of lubricating oil should be applied on the surface of the fitting. The end of the bearing without the model should face inward, that is, in the direction of the shoulder.
(3) Special bearing tools should be used for bearing assembly. It is strictly forbidden to use direct impact method. The size, direction and position of the force applied when assembling the bearing should be appropriate. The protective frame or rolling element should not be stressed. Force to ensure that the end face is perpendicular to the axis.
(4) The end face of the bearing inner ring should generally be close to the shoulder (axis card). After the outer ring of the bearing is assembled, the contact between the bearing cap of the positioning end and the washer or the outer ring should be uniform.
(5) After the rolling bearing is installed, the rotation of the relative moving parts should be flexible and light. If there is a stuck phenomenon, the cause of the analysis should be checked and treated accordingly.
(6) During the assembly process of the bearing, if the hole or shaft is too loose, the tolerance should be checked; when it is too tight, the barbarian assembly should not be forced. The cause of the analysis should be checked and treated accordingly.
(7) The axial clearance of single row tapered roller bearings, thrust angular contact bearings and double direction thrust ball bearings meets the drawings and technical requirements during assembly.
(8) For bearings bearing grease and the matching surface, an appropriate amount of grease should be injected after assembly. For bearings with a working temperature not exceeding 65 °C, ZG-5 grease can be used according to GB491-65 "Calcium-based grease"; for bearings with working temperature higher than 65 °C, it can be used according to GB492-77 "Calcium-based grease" ZN-2ZN-3 grease.
(9) The temperature rise of ordinary bearings should not exceed 35 °C during normal operation, and the maximum temperature during operation should not exceed 70 °C.
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