What Are the Tips for Mounting Bearings?

The installation of grinder bearings sometimes requires a special approach, by heating the bearings, using thermal expansion to convert the tight fit into a loose fit installation method. It is a common and labor-saving installation method.

This method is suitable for the installation of bearings with a large amount of excess, before heating the bearing or the isolationable bearing collar into the tank to heat evenly 80-100 degrees C, and then remove from the oil as soon as possible on the shaft, in order to prevent cooling after the inner ring end face and shaft shoulder fit is not tight, the bearing can be cooled after the shaft tightening. When the bearing outer ring is tightly coordinated with the bearing seat made of light metal, the thermal installation method of the heated bearing seat is used to avoid the abrasion of the mating face.

When heating the bearing with the tank, there should be a grid at a certain distance from the bottom of the box, or with a hook hanging the bearing, bearing sprig can not be placed on the bottom of the box, in order to prevent heavy impurities into the bearing or uneven heating, the tank must have a thermometer, strictly control the oil temperature should not exceed 100 degrees C, in order to prevent the return effect, so that the hardness of the collar reduced.

About the thrust bearing mounting bearing grinder thrust bearing symcombination and shaft fit is generally for the transition, the seat ring and bearing seat hole of the combination is generally for the gap, so this bearing is easier to install, the two-way thrust bearing of the central shaft spring should be fixed on the shaft to prevent rotation relative to the shaft.

Bearing installation method, in general, is the case of shaft rotation, so the inner ring and shaft of the coordination for over-win, bearing outer ring and bearing chamber for the gap.

When installing bearings, the most important thing is to keep the bearings and related parts clean and properuse of mounting tools and methods. Therefore, the following precautions must be observed for the installation of bearings:

1, clean the work area, use cleaning tools or auxiliary tools to work;

2, the installation should use good plastic not easy to shed auxiliary tools;

3, confirm that all assembled parts as qualified products;

4, bearings to use can be unsealed;

5, work should keep the bearing clean;

6, in general, rust-proof oil does not have to wash away, can be installed in accordance with the original state, such as the need to install grease, then use gasoline to clean the bearing on the ointment, and then air gun blow clean.