Ring sleeve functioning as a gasket In the valve application field, the sleeve is inside the bonnet. Generally, corrosion-resistant materials such as polytetrafluoroethylene or graphite are used for sealing.
The bushes made of friction-reducing materials in sliding bearings are also called bearing bushes and bushes. Usually cast on the inner surface of the bearing bush, the version is mainly to reduce costs and save valuable wear-reducing materials. Thickness 0.5-6mm, used for large size or important bearings. The bearing bush is mainly used to replace the wear of the shaft. In addition, it also has the function of supporting the shaft to operate, reducing friction, wear, and vibration.
Link to this article：What Is A Bearing Bush
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