What Are The Precautions For Bearing Installation

The correct installation of bearings affects accuracy, lifespan, and performance. Therefore, the design and assembly departments should conduct thorough research on the installation of bearings. I hope to install according to the operating standards. The items for homework standards are usually as follows:
(1) Clean bearings and bearing related components
(2) Check the dimensions and precision machining of related components
(3) Installation
(4) Inspection after installation of bearings
(5) Supply lubricant
I hope to open the bearing packaging shortly before installation. Generally lubricated with grease, without cleaning, directly filled with grease. Lubricating oil lubrication is not necessary for regular cleaning, but for instrument or high-speed bearings, clean them with clean oil to remove rust inhibitors applied to the bearings. Bearings without rust inhibitors are prone to rust, so they cannot be left unattended. Furthermore, bearings that have been sealed with lubricating grease can be used directly without cleaning.
The installation method of bearings varies depending on the structure, fit, and condition of the bearings. Generally, due to the fact that most bearings rotate around the shaft, the inner ring requires an interference fit. Cylindrical hole bearings are often pressed in with a press or hot assembled. In the case of a tapered hole, it can be directly installed on the tapered shaft or installed with a sleeve.
When installing to the casing, there is usually a lot of clearance fit, and the outer ring has interference. Usually, a press is used to press it in, or there is also a cold shrink fit method for installation after cooling. When dry ice is used as a coolant and cold shrink is used for installation, moisture in the air will condense on the surface of the bearing. So, appropriate rust prevention measures are needed.