Custom ZrO2 Ceramic Step Sleeve Bearing for Pumps

Customized ZrO2 Sliding Bearing Sleeve with Step

Product overview

The Zirconia Stepped Sleeve is a high-performance ceramic component made from Yttria-Stabilized Zirconia (YSZ), offering exceptional thermal resistance, corrosion resistance, high hardness, and low thermal conductivity. It is widely used in metallurgy, semiconductors, chemical processing, aerospace, and precision machinery, particularly in extreme environments requiring high-temperature insulation, wear resistance, and chemical inertness.

Key Features:

• Extreme Temperature Resistance (Up to 2200°C)
• Superior Thermal Shock Resistance
• High Chemical Inertness (Resistant to acids, alkalis, and molten metals)
• High Hardness & Wear Resistance (Vickers Hardness ≥1200 HV)
• Low Thermal Conductivity (Excellent Insulation Performance)
• Precision Machining (High dimensional accuracy for demanding applications)

Technical Specifications

Typical Applications

• High-Temperature Furnaces & Melting Equipment (Crucibles, Thermocouple Protection Tubes)
• Semiconductor Manufacturing (Wafer Processing, CVD Reactor Components)
• Chemical Corrosion-Resistant Parts (Pump Bushings, Valve Seals)
• Aerospace (Thermal Insulation Components, Jet Engine Parts)
• Precision Machinery (High-Precision Bearing Sleeves, Wear-Resistant Guides)

Why choose us:

Our factory and processing machine:

We have three factories in China, can meet the needs for different custmers, and also we have advanced pressing, sintering and processing machines.

According to the structure difference, it can be divided into: external gear pump and internal gear pump. Our company has ample production experience of both kind of the gear pump sliding bearing in material of silicon carbide. We did supply these SSiC sliding bearing for Germany Witte for many years.

Our bearing advantage:

1. Free sample bearing
2. ISO standard
3. In stock bearing
4. Bearing small order accepted
5. OEM bearing service
6. Customized bearing, Customer’s bearing drawing or samples accepted
7. Competitive factory price bearing



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.
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• 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.
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• 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.
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• 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.
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• 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.
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• 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.