Selection method of bearings

Selection method of bearings

The market requirements of various mechanical devices and instruments using rolling bearing are becoming more and more strict, and the conditions and performance required for bearing are becoming more and more diversified. In order to choose the most suitable bearings from a large number of structures and sizes, they need to be studied from various angles. In the selection of bearings, generally, consider as the shaft system bearing arrangement, installation, disassembly difficulty, bearing allowed space, size, and the bearing market, roughly determine the structure of the bearing. Secondly, while comparing and studying the design life of various machines using bearings and the various different durability limits of bearings, while determining the size of bearings. In the selection of bearings, only the fatigue life of the bearing is often considered, and the grease life, wear and noise caused by grease aging also need to be fully studied. Moreover, according to different uses, it is necessary to choose the precision, swimming gap, retention frame structure, grease and other requirements, for specially designed bearings. However, there is no certain order and rules in the selection of bearings, and the priority should be given to the required conditions, performance and the most related matters related to the bearing, particularly practical.

Notes for using the bearings

Rolling bearing is a precision part, and its use must be carried out carefully accordingly. No matter how high performance the bearings are used, the high performance is not expected, if improperly used.

The precautions for using the bearings are as follows.

(1) Keep the bearing and its surroundings clean.

Even the small dust that the eyes do not see has bad effects on the bearing. Therefore, to keep the surrounding clean, so that the dust does not invade the bearing.

(2) Use it carefully and carefully.

In the use of the bearing to give a strong impact, will produce scars and indentation, become the cause of the accident. In serious cases, it will crack, fracture, so we must pay attention to it.

(3) Use the appropriate operation tools.

Avoid existing tools, appropriate tools must be used.

(4) Pay attention to the corrosion of the bearing.

When operating the bearings, the sweat on the hands is the cause of rust. Pay attention to clean hands, it is best to wear gloves.