Changsha Zoomlian Pump Co., Ltd. 长沙中联泵业股份有限公司

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    • Shaft bushing

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    Shaft bushing

    Introduction to the shaft bushing: The shaft bushing is the part that is in contact with the shaft in a sliding bearing, it is very smooth and is generally made of wear-resistant materials such as bronze or antifriction alloys. In special cases, it can be made of wood, plastic, or rubber. It is also called the shaft lining, shaped like a semicylindrical surface in the form of a tile. Key points in the processing of the shaft bushing: The material of the shaft bushing is usually soft, the inner circle

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    Introduction to the shaft bushing:

    　　The shaft bushing is the part that is in contact with the shaft in a sliding bearing, it is very smooth and is generally made of wear-resistant materials such as bronze or antifriction alloys. In special cases, it can be made of wood, plastic, or rubber. It is also called the "shaft bush" and has a semicylindrical, tile-like shape.

     

    Key points in shaft bushing processing:

    　　The material of the shaft bushing is usually soft, so the inner cylindrical surface should not be processed by grinding, but can be processed by boring, diamond boring, scraping, or polishing. When polishing, the method of fitting to the shaft diameter should not be used; instead, a special polishing bar with dimensions equal to the bushing bore should be used.

    　　Scraping is mainly used in partial bushing bearings, using a scraping machine with a wide blade. When scraping manually, the marks should be superficial. For bushings with complex internal shapes, special boring methods should be used according to the specific shape.

     

    Materials for manufacturing shaft bushings:

    　　The main materials for bushings in non-lubricated bearings are polymers, carbon graphite, and special ceramics.

    Changsha Zhonglian Pump Industry Co., Ltd.

    Why Choose Us?

    Changsha Zhonglian Pump Industry Co., Ltd. was established in 1989, following the reform of the Changsha Water Pump Factory. It is a national high-tech comprehensive enterprise integrating design, research and development, manufacturing, and service. The company was listed on the Hunan Provincial Stock Exchange on December 31, 2019, with the abbreviated name "Zhonglian Pump Industry" and stock code: 600275HN. It is currently a key enterprise in China's centrifugal pump industry and one of the leading domestic manufacturers of multi-stage pumps, headquartered in Changsha, Hunan, a historical and cultural city in China.

    Changsha Zhonglian Pump Industry Co., Ltd.
    Changsha Zhonglian Pump Industry Co., Ltd.

    FAQ

    Q

    What products do you mainly produce?

    A

    Zoomlion Pump Industry manufactures various large industrial centrifugal pumps. The main products include: self-balancing multistage pumps, multistage centrifugal pumps, single-stage centrifugal pumps, split-case pumps, chemical pumps, submersible pumps, pipeline pumps, long-shaft pumps, condenser pumps, and more.

    Q

    Can you help me choose a model?

    A

    Of course! If the water pump model is not selected accurately, it can cause significant problems. After you take it back, it might be either too small to meet the usage requirements or too large, resulting in higher electricity and fuel costs, increasing the operating expenses.

    Q

    Why is the price quotation so slow?

    A

    Because centrifugal pumps are non-standard custom products with many models and a wide price range. Even for the same model, the price varies greatly depending on the materials and configurations used. Taking the most common pump accessory—the impeller—as an example, the price of a stainless steel impeller is several times that of a cast iron impeller. Therefore, we need to clearly confirm the relevant information to provide you with an accurate price. Normally, if you provide comprehensive information, we can quote within 5 minutes.

    Q

    What information should I provide when I need a quote?

    A

    Usually, if you want to get an accurate quote, it is recommended that you provide us with the following information: pump flow rate, head, on-site operating voltage, frequency, temperature of the conveyed liquid, pH value, solid particle content, on-site installation conditions (horizontal or vertical installation), and other related details. If you are not very familiar with these, it’s okay; our sales manager will assist you in determining them.

    Q

    Do you have centrifugal pumps in stock?

    A

    There are many models and configurations of centrifugal pumps. Except for a small number of commonly used standard models that are in stock, the vast majority of models and configurations are not stocked and are customized products. We need to first select the pump based on your site conditions such as flow rate, head, medium temperature, pH value, and installation conditions. After determining the pump model and configuration, we can then place an order with the workshop for production.

    Q

    What is your usual delivery time?

    A

    Models in stock can be shipped by the next day at the latest. Others are custom-made, and depending on the product size and specific project conditions, the delivery time is generally between 7-90 days. Please consult our sales manager for details: 0731-88632200 。

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