The difference between high-speed bearings and low-speed bearings

 

We know that bearings are needed in many machines nowadays. Although these parts are challenging to distinguish from the outside, if you want the inside of the device to run frequently and continue to work, you mainly rely on these bearings.  There are many types of bearings. Bearings can be divided into two types according to speed, high-speed bearings, and low-speed bearings. There are bearings in various electrical facilities in the cars we usually drive.

 

What are the differences between high-speed bearings and low-speed bearings?

It is not that the rotation speed of the bearing itself is different, but that the internal structure of the bearing is different. Judging whether a bearing is a high-speed bearing or a low-speed bearing is divided according to its linear speed. Many low-speed bearings can reach tens of thousands of revolutions per minute, and some high-speed bearings, the number of rotations per minute is only a few hundred. In addition to their names and their linear speeds, there is another difference: their rotating structures are also different. Generally speaking, the rotating parts in low-speed bearings are round, some are cylindrical or even tapered. The central part of the high-speed bearing is the bearing bush.

 

At the same time, there are some differences between the two. Generally speaking, low-speed bearings have a rougher appearance, and the joints between parts are looser. To ensure its accuracy and its accuracy, high-speed bearings The degree of precision is generally very smooth on the surface. At the same time, the distance between the inner ring and the outer ring is minimal, and the accuracy of itself is much higher. Many high speed bearings are also super-precision bearings. High-speed bearings and super precision bearings must use special high speed bearing grease.

 

In terms of materials, there is also a slight difference between high-speed bearings and low-speed bearings. High-speed bearings are generally made of very high hardness steel, which can withstand the pressure caused by excessively high speeds. If it is low, some common materials are used, and there is no need to bear too much trouble, so the requirements for the hardness and durability of the material are relatively reduced.

 

Both low-speed and high-speed bearings are manufactured after a precise design by the designer and repeated inspections. Although its parts are tiny, its technological innovation and changes can often lead to the development of an industry, and its role cannot be underestimated. Therefore, if our daily use equipment contains a bearing part, we must be careful not to damage it; otherwise, it may cost a lot of maintenance costs.