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Bearing are an important part of contemporary machinery and equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy.

Bearing classification
  • Rolling bearing
  • Ball bearing
  • Thrust bearing
  • Needle bearing
  • Linear Bearings


Its mainly function is support, but this is only part of its function. The essence of support is to be able to bear radial loads. It can understood for fix the shaft. It includ the automatic selection of bearings.

The main function is to fix the shaft, so it can only achieve rotation, while controlling its axial and radial movement. The motor cannot work at all without bearings. Because the shaft may move in any direction, and the motor is required to only rotate when it is working.

Theoretically speaking, it is impossible to achieve the role of transmission. Not only that, but the bearing will also affect the transmission. In order to reduce this effect, good lubrication must be achieved on the bearings of the high-speed shaft. Some bearings are already lubricated, which are called pre-lubricated bearings.

Most bearings must have lubricating oil, because responsible, it is for not only increasing energy consumption due to friction, when running at high speeds, but even more frighteningly, it is easy to damage the bearings. The idea of turning sliding friction into rolling friction is one-sided, because there is something called a sliding bearing.

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How to ensure the reliable operation of the bearing

Generally speaking, pay attention to the following points from the perspective of use:

  1. A bearing clearance should be appropriate. If too large will cause impact. Or if too small will cause poor lubrication, and may burn bushes.
  2. Guarante The surface quality and geometry of bearings and journals should be strictly.
  3. Improve lubrication quality, control oil pressure, temperature and flow, and strengthen oil filtration;
  4. Use fuel and lubricating oil that meet the requirements.

In order for the bearing to give full play to and maintain its due performance for a long time, it is necessary to do a good job of regular maintenance (regular inspection). Through appropriate regular inspections, it is very important to improve productivity and economy to detect faults early and prevent accidents before they occur.

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