10月13日の日記

Generally, because most of the shaft rotates, the inner ring needs an interference fit. However, the bearings for instruments or high-speed use should be cleaned with clean oil to remove the anti-rust agent coated on the bearings.　　　　

The installation method of the bearing. The Mechanical roller bearing bearing structure, fit, and the conditions of use vary. General grease lubrication, do not clean, just fill the grease directly.Hope to open the bearing package just before installation. In the case of a tapered hole, install it directly on the tapered shaft or use a sleeve. Bearings with anti-rust agent removed are easy to rust, so they cannot be left alone.

It is usually pressed in by a press, or there is 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 bearing when the shrink fit is installed. Lubricating oil does not need to be cleaned in general.

When is installed on the shell, there is generally a large amount of clearance fit and interference in the outer ring. Therefore, appropriate anti-rust measures are required. In addition, bearings that have been sealed with grease can be used directly without cleaning. Bearings with cylindrical bores are usually pressed in with a press or hot-fitting method

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