The correct selection of bearings will have a very important effect on whether the main engine can obtain good working performance and prolong its service life; whether the enterprise can shorten the maintenance time, reduce the maintenance cost, and improve the machine’s operating rate. Therefore, whether it is a design and manufacturing unit or a maintenance and use unit, great attention must be paid to the selection of thin-walled bearings.

In general, the steps for selecting a bearing may be summarized as:

1. According to the bearing working conditions (including load direction and load type, speed, lubrication method, coaxiality requirements, positioning or non-positioning, installation and maintenance environment, ambient temperature, etc.), select the basic type of thin-walled bearings, tolerance grades and travel Gap

2. Determine the bearing type through calculation according to the working conditions, force conditions and life requirements of the bearing, or select the bearing type according to the use requirements and check the life;

3. Check the rated load and limit speed of the selected bearing. Zh

The main considerations in selecting a bearing are the limit speed, the required life and load capacity. Other factors help determine the type, structure, size and tolerance level of the thin-walled bearing and the final solution for the clearance