Zigong Kemit Cemented Carbide Co., Ltd.

Zigong Kemit Cemented Carbide Co., Ltd.

Submersible Pump Bushings Procurement Guide

2024 11/26

Functions of Submersible Pump Bushings
MT Carbide-Bushing#1 (2)MT Carbide-Bushing#4 (1)MT Carbide-Bushing#2 (2)
Support and Positioning
 
Submersible pump bushings are mainly used to support and position the rotating shaft of the submersible pump. It ensures that the shaft rotates in the correct position and reduces shaft wobbling and vibration. For example, in a motor-driven submersible pump, if the shaft does not have the stable support of the bushing when rotating at high speed, it may collide with other components inside the pump body, thus damaging the pump structure.
 
Friction Reduction
 
Bushings are usually made of materials with good lubricating properties and a low coefficient of friction. When the shaft of the submersible pump rotates within the bushing, it can effectively reduce the friction between the shaft and surrounding components. This helps to improve the mechanical efficiency of the pump and reduce energy consumption. At the same time, lower friction can also slow down the wear rate of components and extend the service life of the submersible pump.
 
Sealing Assistance

Although the bushing itself is not the main sealing component, it helps with sealing to a certain extent. By providing a tight fit for the shaft, it can prevent external impurities (such as silt, small particles, etc.) from entering the pump body and also reduce the leakage of internal liquid, maintaining the working efficiency of the pump.
 
Pressure Distribution
 
During the operation of the submersible pump, the shaft is subjected to various forces, such as axial and radial forces. The bushing can evenly distribute these forces onto the pump body, preventing the shaft from being damaged due to excessive local stress.

Buyer's Precautions
 
Material Quality

Pay attention to the material of the bushings. Our products are made of high-quality tungsten carbide, etc., which possess better wear resistance, corrosion resistance, and mechanical properties. Tungsten carbide bushings have higher hardness and are more wear-resistant, suitable for submersible pumps with high rotational speeds and high pressures.
 
Dimensional Accuracy
 
The dimensional accuracy of the bushings is of crucial importance. It must precisely match the installation parts of the shaft and pump body of the submersible pump. Inappropriate dimensions may lead to difficulties in installation or problems such as looseness or excessive tightness during the working process. Buyers need to select bushings of appropriate sizes according to the specific models and specifications of the submersible pump. Generally, it is necessary to check whether the dimensional tolerance range of the product meets the requirements.
 
Compatibility
 
Ensure that the bushings are compatible with the brand, model, and working environment of the submersible pump. Different brands and models of submersible pumps may have different requirements for bushings. For example, some submersible pumps may require bushings with special shapes or structures to meet their special working conditions (such as high-temperature and high-sand-content working environments). Meanwhile, the compatibility of the bushings with other internal components of the pump (such as seals, bearings, etc.) should also be considered.
 
Supplier Reputation and Quality Certification
 
Choose a supplier with a good reputation. You can check the customer reviews and industry reputation of the supplier. In addition, it is preferable that the product has relevant quality certifications, such as ISO certification, which indicates that the bushings meet certain quality standards during the production process and the quality is more guaranteed.
 
After-sales Service
 
Good after-sales service is very important. Our factory provides purchasers with product installation guidance, quality guarantee period, return and exchange policies, etc. We conduct strict quality inspections before shipment to ensure that the products are error-free before sending them out, thus ensuring the punctuality of delivery and also improving time and efficiency.