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How to install imported bearings

by:JNSN     2021-12-14

   The installation of imported bearings: Whether the installation of imported bearings is correct, affects accuracy, life and performance. Therefore, the design and assembly department must fully study the installation of imported bearings. Hope to install in accordance with operating standards. The operating standard items are usually as follows:   (1) cleaning imported bearings and related parts of imported bearings;   (2) checking the dimensions and finishing conditions of related parts;   (3) installation;   (4) inspection after installing imported bearings;   (5) ) Supply lubricant.   I hope that the imported bearing package will be opened just before the installation. General grease lubrication, do not clean, directly fill with grease. Lubricating oil does not need to be cleaned in general. However, imported bearings for instruments or high-speed use should be cleaned with clean oil to remove the anti-rust agent coated on the imported bearings. Imported bearings with anti-rust agent removed are easy to rust, so they cannot be left alone. Furthermore, imported bearings that have been sealed with grease can be used directly without cleaning. The installation method of imported bearings varies according to the structure, fit and conditions of imported bearings. Generally, because most of the shaft rotates, the inner ring needs an interference fit. Imported bearings with cylindrical bores are usually pressed in with a press or hot-installed. In the case of a tapered hole, install it directly on the tapered shaft or install it with a sleeve.  When installed on the shell, generally there is a lot of clearance fit, and the outer ring has an interference. It is usually pressed in by a press, or there is also a shrink fit method for installation after cooling. When dry ice is used as the coolant, the moisture in the air will condense on the surface of the imported bearing when it is installed with cold shrinkage. Therefore, appropriate anti-rust measures are required.

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