Inspection After Mounting The Bearing

- Aug 14, 2019-

Supply lubricant


Lifting large bearings (in addition to the above, you should also pay attention to the following requirements)


a) For products with lifting holes in the inner ring, screw the eyebolts into the lifting holes and then lift them with the spreader.


b) For bearings without lifting holes, it must be hoisted with clean heavy-duty nylon slings. Remember to use wire ropes to avoid burrs, scratches and foreign objects entering the bearing.


Cold installation


Usually for small bearings that are not too tight or bearings with an inner diameter of less than 80 mm, they can be assembled using mechanical or hydraulic presses.


Press a sleeve on the inner ring section and hammer or hydraulic press, as shown in Figure 1. The following figure 3 is the wrong method of tapping.


If the non-separable bearing is to be press-fitted into the shaft and the shaft seat at the same time, it must be ensured that the same pressure acts on the inner and outer rings at the same time, that is, the two planes of the installation tool must be on the same plane, as shown in Figure 2 below.

Hot installation


For large bearings, a large force is required when pressing in, so it is difficult to press in. Generally use induction heaters or heat in oil. Generally, the heating temperature does not exceed 100 ° C for 20 to 30 minutes. Oil heating oil temperature 80-100 ° C, the bearing can not directly contact the bottom. Generally, it is heated to 20~30°C higher than the required temperature (up to 120°C), so as to avoid the bearing becoming cool and difficult to install during operation.

Note: The bearing lettering face should be installed on the outside for installation.