Bearings are an important part of contemporary machinery, and their quality is related to the operation of the entire equipment. This article describes the installation, maintenance, disassembly and common problems of the bearings, and hopes to help everyone’s production.

Bearing installation

The installation of the bearing directly affects the accuracy, life and performance. Therefore, the design and assembly department should fully study the installation of the bearing, according to the following operating standards:

(1) cleaning the bearing and bearing related parts;

(2) Check the size and finishing of the associated components;

(3) Installation (only before the installation, only open the bearing package);

(4) Inspection after installing the bearing;

(5) Supply lubricant.

Generally grease is lubricated, not cleaned, and directly filled with grease. Lubricating oil is not necessary for cleaning. However, for instruments or high-speed bearings, it should be cleaned with clean oil to remove the rust inhibitor applied to the bearing. The bearing with the rust preventive removed is easy to rust, so it cannot be placed. Furthermore, bearings that have been sealed with grease are used without cleaning.

The mounting method of the bearing varies depending on the bearing structure and the fit. In general, since the shaft is mostly rotated, the inner ring needs an interference fit. Cylindrical bore bearings, press with multiple presses, or use hot charging methods. For taper holes, mount directly on the taper shaft or with a sleeve.