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The role of universal bushings in practical work has a lot to do with its application environment and purpose. In the field of valve application, universal bushings are installed in the valve cover to cover the valve stem, so as to reduce the leakage of the valve and achieve the sealing effect. In the field of bearing applications, the use of bushings can reduce the wear between the bearing and the shaft seat, and avoid the effect of increasing the gap between the shaft and the hole.

The use of universal bushings is relatively high flexibility, and it can play many roles. In general, universal bushings are a type of component that protects equipment. The use of bushings can reduce equipment wear, vibration and noise, and have an anti-corrosion effect. The use of the bushing can also facilitate the maintenance of mechanical equipment, simplify the structure and manufacturing process of the equipment.

Generally speaking, universal bushings use an interference fit with the seat, and a clearance fit with the shaft, because no matter what, it is unavoidable to wear and can only prolong the life, and the shaft parts are relatively easy to process; there are also some new ones. Designers do not like this design, thinking that this is to increase the cost during manufacture, but after a period of use, it is still necessary to transform in this way during maintenance, but the transformation will easily reduce the accuracy of the equipment.

In the moving parts, the wear of the parts is caused by long-term friction. When the gap between the shaft and the hole is worn to a certain extent, the parts must be replaced. Therefore, the designer chooses the one with lower hardness and better wear resistance when designing. The material is universal bushings, which can reduce the wear of the shaft and the seat. When the bushing or bushing is worn to a certain extent, it can be replaced, which can save the cost of replacing the shaft or seat.