Silicon Carbide Sliding Bearing For Canned Motor Pump

customized silicon carbide sliding bearing

Customized Silicon Carbide Sliding Bearing for Canned Motor Pump

Description of Sliding Bearing for Canned Motor Pump:

Silicon carbide sliding bearings are a critical component in canned motor pumps, designed for demanding industrial applications such as chemical processing, petrochemical refining, and nuclear power systems. These bearings are manufactured using high-purity reaction-bonded silicon carbide (RB-SiC) or sintered silicon carbide (SSiC), offering superior performance compared to traditional metal bearings.

One of the key advantages of SiC sliding bearings is their exceptional corrosion resistance, capable of withstanding highly acidic, alkaline, and saline environments (pH 0-14). This makes them ideal for handling aggressive media like sulfuric acid, seawater, and chlorine-based chemicals.

Additionally, SiC bearings exhibit extremely low wear rates due to their ultra-high hardness (9.5 Mohs) and self-lubricating properties. The smooth, polished bearing surfaces (Ra ≤ 0.1μm) minimize friction, ensuring stable operation even under boundary lubrication conditions.

These bearings also provide outstanding thermal stability, maintaining structural integrity from cryogenic temperatures (-196°C) up to 350°C continuous operation. Their high thermal conductivity (120 W/m·K) prevents localized overheating, a critical feature for pumps handling hot fluids.

Engineered for reliability, SiC sliding bearings enhance pump MTBF (Mean Time Between Failures) by 3-5x compared to tungsten carbide alternatives. When selecting these bearings, ensure proper material pairing (SiC vs. SiC or SiC vs. carbon) and compliance with API 682/ISO 21049 standards for optimal performance.

Canned Motor Pump technical overview

Product Definition & Core Technology
Canned motor pumps are hermetically sealed centrifugal pumps where the motor and impeller are integrated into a single containment shell, eliminating traditional shaft seals. The critical innovation lies in:
-Magnetic coupling for torque transmission
-Process fluid-lubricated bearings (typically SiC/SiC)
-Double containment shell (ASME B31.3 pressure-rated)

Overall, ceramic canned motor pump bearings offer a range of benefits for applications that require high-performance, durable, and corrosion-resistant components. They canbe used in a variety of industries and applications where traditional steel bearings may not provide the necessary performance or durability. When choosing ceramic gear pump bearings, it is important to consider the specific requirements of the application and select a high-quality ceramic material that is appropriate for the intended use.

Parameter Table

Why Choose Us

1.Professional team

Our company logo is ZXSQ and CSQ, and possesses eleven invention patents for utility models. The company now has a high-quality professional team consisting of dozens of members, to provide you with high-quality and perfect service, according to customer requirements to order a variety of bearing products.

Since the year of 1982 we have accumulated abundant experience in the production over the past more than 40 years, devoting ourselves whole -heartedly to the research and development of ceramic bearing material, our processing technique and improvement of our equipments.

Having undergone several evolution and transformation, our company has now become the leading enterprise in China domestic market in the fields of ceramic bearing and ceramic material products.


2.Strength factory

At present, we have a fully automatic grinding and assembling production line for ceramic bearings, with an annual output of 3 million sets of 608-2PS, 608-2RS and other specifications of P5 and P4 precision levels.

Firing equipment and technology leading in the industry. Our company has the most high-end equipment in the field of domestic industrial ceramics production, in addition to the hot isostatic sintering furnace (HIP) imported from ABB Sweden. Our company also has other production equipment, the product firing temperature has been raised to more than 2000℃.





FQA

Q:Who are we?
A:We are a factory in Beijing, China. We have been producing and selling ceramic bearings for more than 40 years. We have established friendly cooperative relations with many domestic and foreign companies.

Q:How can we guarantee quality?
A:We always produce samples before mass production, and produce in strict accordance with customer requirements and production regulations. After the completion of production, we will use inspection equipment to carry out precise inspection of products, and our packaging adopts the double insurance of foam and carton, to strictly ensure the quality of products.

Q:What can you buy from us?
A:Ceramic deep groove ball bearings, ceramic angular contact ball bearings, hybrid ceramic ball bearings, ceramic linear bearings, etc and all kinds of ceramic balls.

Q:Why should you buy from us not from other suppliers?
A:We are an industry and trade integrated company, we have three factories, with today's production and inspection equipment, can provide better delivery dates and product quality.

Q:What service can we provide?
A:We will provide high quality products and customized services, which can be fully customized according to user needs. We can provide samples for customer's confirmation.

Welcome your enquiry

We supply bearings, high quality products, if you need to buy or consult the price of bearings, please contact us. We are a set of bearing research and development, production, sales, service in one of the professional bearing company, providing bearing products and related technical services. We choose high quality raw materials, carefully do each set of bearings.

We adhere to customer demand as the guidance, and strive to provide customers with quality products and after-sales service, create value for customers, do customers partner. Welcome to discuss the cooperation!

  Beijing Zhongxing Shiqiang Ceramic Bearing Co., Ltd., founded in 2005, situated in No. A38 Weishanzhuang Industry District, Daxing District ,Beijing, is the first company in China to invent and manufacture rare-earth ceramic bearings. The rare-earth ceramic bearings have characteristics of strong resistance against all kinds of acid, alkali, salt and other corrosive medium erosion, high temperature resistance, wear-resistant, dimensional stability at high temperature, etc. They can be used in worse lubrication working condition with a long operating life, thus it is a new kind of high-tech products material, with great social and economic value.

  Besides, the founder of the company started theoretical research and process development on ceramic bearings as early as 1982, and obtained two national invention patents in 1992/1994 (Patent No. ZL92114993X for rare-earth ceramic bearings and Patent No. ZL94106294.S for ceramic ball processing technology).

  At present, our company mainly produces ceramic bearings, sliding bearings, ceramic balls and ceramic industrial parts. The production materials are high performance ceramic materials, mainly SSIC, Si3N4, ZrO2, Al2O3.

  The advantage of our company is that we have specialized production line for high precision ceramic balls, and we can produce customized GPS (Gas Pressure Sintering) and HIP (Hot Temperature Isostatic Pressing) sintered Si3N4 balls and ZrO2 balls. The quality of our products is equivalent to ASTM F2094 F2094M-08 standard class I and II materials, and the precision grade reaches international standard G3, G5, G10 ceramic bearing balls, etc. Please note that the most of equipment used in our production and testing process are from Mitsutoyo Japan, and the hot isostatic sintering furnace is from ABB Sweden, therefore, the quality of our products is absolutely superior. And we are confident that you will be satisfied with our products.

  In 2017, Liaoning Zhongxing Shiqiang New Material Co.,Ltd., was founded, situated in 571 Jianshe Road, Jingkai District, Anshan City, Liaoning Province. The company mainly produces sliding bearings as well as pump accessories. And the pump accessories are mainly sold in domestic famous pump manufactures.

  In 2020, Zhongxing Shiqiang Technology (Tianjin) Co., Ltd., was founded, situated in No.41 Guangyuan Road, Wuqing District, Tianjin. The company mainly produces rolling bearings as well as ceramic balls, and its productions are competitive in the international market.

  Why choose us

  With years of development and improvement, the company has formed a professional team from research and development, production, technology, inspection and after-sales service. And in order to ensure that the interests of customers are maximized, all productions have to pass strict inspection before they go out.

  For more than ten years, our ceramic bearing products have been exported to all over the world, such as the Germany, Britain, Japan, Italy, Switzerland, and the Netherlands, and have won a good reputation from our customers. Our friends are all over the world. Our company welcomes customers at home and abroad to come to consult us.