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Difference Between High Speed Bearing And Low Speed Bearing

Rolling bearings are generally used for low-speed and sliding bearings are generally used for high-speed. As the name suggests, rolling bearings have balls, spherical, cylindrical and conical. Sliding bearings are usually bearing shells. High and low speed bearings are difficult to distinguish by appearance, and most of the common low-speed bearings are cheap, but many high-speed bearings are used in NTN bearings inside the machine.

High speed bearings generally make fag bearings used inside the machine and cooled and lubricated with liquid bearing oil. If the bearing is not used in the automobile, where the high speed of the motor does not have much power, the high-speed bearing can also be cooled and lubricated with solid bearing oil. Generally, the high-speed bearing is used inside the engine transmission differential, while the low-speed bearing is used in the chassis such as the axle hub bearing.

Difference Between High Speed Bearing And Low Speed Bearing
If it is necessary to distinguish high and low speed bearings from their appearance, you can see the following two points:

1. The precision of high-speed bearing is higher than that of low-speed bearing, and its surface roughness is small. The intuitive difference is that the surface of high-speed bearing is smoother than that of low-speed bearing, and the clearance between shaking outer ring and inner ring of high-speed bearing is smaller, while that of low-speed bearing is the opposite.

2. Compared with low-speed bearings, the accuracy of steel INA Bearing beads or rollers of high-speed bearings is different, and the accuracy of raceway is higher than that of low-speed bearings. High speed bearings have high grade and good material, such as metallographic structure and hardness of steel.

The general rolling bearing is suitable for low and medium speed rotation. If the high-speed rotation of rolling bearing requires special requirements, its model can be reasonably selected according to the load and other factors.

If the speed is between 5 and 60 meters per second, even if it is not a high-speed bearing, the general bearing can be basically satisfied as long as it can be lubricated. If higher speed bearings are used in some special occasions, such as high-speed rotating bearings used in high-speed cutting machine tools or precision machining machine tools, and special bearings such as ceramic bearings, electric power bearings and magnetic bearings, it is necessary to contact professional manufacturers.

Both low-speed and high-speed bearings are actually manufactured after designers enter NSK bearing for precise design and repeated inspection. Although its parts are very small, its technological innovation and change can often drive the development of an industry, and its role can not be underestimated. Therefore, if the bearing part is included in the equipment we use every day, we must pay attention not to damage it, otherwise it may cost a lot of maintenance costs.

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