How to maintain the bearing adapter sleeve?

Whether the installation of the bearing adapter sleeve is appropriate or not endangers precision, service life, and characteristics. Therefore, the design scheme and assembly unit should conduct sufficient scientific research on the installation of the bearing adapter sleeve. It is expected that the installation will be carried out in accordance with the work specifications. The new items in the working specifications for the bearing adapter sleeve of rolling bearings are generally as follows:

(1) Clean the bearing adapter sleeve and its associated parts

(2) Check the specifications and deep processing status of the associated components

(3) Installation

(4) Inspection after installing the bearing retainer sleeve

(5) Provide lubricating fluid

It is expected that the bearing retainer package can only be opened before installation. Generally, lubricating grease is moistened, and if it is not cleaned, immediately add lubricating grease. Generally, it is not necessary to clean the lubricating grease for lubrication. However, for instrument equipment or high-speed bearing sets, clean them with clean oil to remove the rust preventive oil applied to the bearing sets. The bearing retainer sleeve that has been removed from the rust preventive oil is prone to rust, so it cannot be left unattended. Secondly, bearing retainer sleeves that have been sealed in lubricating grease should be immediately applied without cleaning.

The installation method of the bearing retainer sleeve varies depending on the structure, mutual fit, and standard of the bearing retainer sleeve. Generally, because shaft rotation is common, the inner hole must be transitionally fitted. The cylindrical bore bearing retainer sleeve should be pressed in with a press or hot-loaded. For places with tapered holes, immediately install them on a smooth shaft or use a sleeve specification for installation.

When installing to the casing, there is usually a large amount of mutual fit between the side gaps, and the outer side undergoes interference. Generally, a press is used to press in, or there is also a cold shrink mutual fit method for installation after refrigeration. In places where liquid nitrogen is used as a cooling liquid and cold shrink is installed together, the moisture in the air will solidify on the surface of the bearing retainer sleeve. Therefore, appropriate rust prevention measures must be taken.