Custom High-Temperature Silicon Carbide (SiC) Ceramic Bearing Sleeves
On-Demand Manufacturing Solutions
Custom-engineered silicon carbide (SiC) sliding bearing sleeves represent a cutting-edge solution for demanding industrial, automotive, and aerospace applications. These precision components are crafted from advanced ceramic materials such as silicon carbide (SiC), silicon nitride (Si₃N₄), or zirconia (ZrO₂), delivering superior performance compared to conventional steel bearings.
Key Advantages
- Exceptional Corrosion Resistance: Silicon carbide's inherent stability ensures outstanding resistance to corrosive chemicals and harsh environments, making it ideal for chemical processing, marine systems, and other aggressive industrial settings.
- Reduced Friction & Wear: The ultra-smooth, high-hardness surface of SiC ceramic minimizes friction and wear, enhancing operational efficiency and extending the service life of pumps, turbines, and rotating equipment.
- High-Temperature Durability: With exceptional thermal stability, SiC bearings maintain structural integrity in extreme heat, perfect for high-temperature applications such as combustion engines, industrial furnaces, and power generation systems.
Applications
These advanced ceramic bearings are widely utilized across industries, including:
- Aviation & Aerospace (turbine components, propulsion systems)
- Oil & Gas (pump shafts, drilling equipment)
- Automotive & Racing (high-performance engine parts)
- Chemical Processing (corrosive fluid handling)
- Power Generation (turbine bearings, high-speed rotors)
- Medical & Semiconductor (precision instruments, cleanroom machinery)
Customization & Precision
We specialize in on-demand manufacturing of tailored SiC bearing sleeves, ensuring exact specifications for load capacity, dimensional tolerances, and operational environments. Our advanced ceramics redefine reliability in mission-critical applications.
Industries Served: Defense, energy, manufacturing, transportation, and more - where extreme conditions demand unmatched material performance.
Material Properties
Key properties of pressureless sintered silicon carbide:
| Max Temperature | up to 1650℃ |
| Density | 3.15-3.18 g/cm³ |
| Thermal Expansion | 4.0 (10⁻⁶/℃) |
| Thermal Conductivity | 120 W/m°K |
| Hardness | 2800 HV5 |
| Elastic Modulus | 410 GPa |
| Chemical Stability | Superior resistance to acid and alkali corrosion (including hydrofluoric acid) |
Advantages of All-Ceramic Bearings vs. Steel Bearings
1. Higher Temperature Resistance
Ceramic bearings maintain superior mechanical stability at elevated temperatures, making them ideal for extreme heat applications where steel bearings would degrade.
2. Superior Performance in Thermal Cycling
Due to their low thermal expansion coefficient, ceramic bearings experience minimal clearance changes under temperature fluctuations, ensuring reliable operation across a wider range of conditions.
3. Enhanced Anti-Seizure & Anti-Jamming Properties
The reduced thermal deformation of ceramic materials minimizes friction-induced binding, significantly improving resistance to seizure and galling.
4. Oil-Free Operation Capability
Ceramic bearings exhibit self-lubricating properties and can utilize process media for lubrication, enabling reliable performance in high-vacuum environments or where traditional lubrication is impractical.
5. Exceptional Corrosion Resistance
Unlike steel, ceramics are impervious to acids, alkalis, and salts, making them perfect for harsh chemical processing, marine, and corrosive industrial applications.
6. Electrical Insulation & Anti-Static Properties
Our ceramic bearings are non-conductive, eliminating static discharge and preventing electrical arcing damage--common issues with conductive steel bearings.
7. Non-Magnetic & Contamination-Resistant
Ceramic's non-magnetic nature prevents magnetic particle adhesion, reducing abrasive wear and ensuring smooth operation in MRI equipment, semiconductor tools, and other magnetic-sensitive environments.
Our Manufacturing Capabilities
We have three factories in China, capable of meeting diverse customer requirements, equipped with advanced pressing, sintering and processing machines.
Our company (ZXSQ and CSQ brands) possesses eleven invention patents for utility models. With a professional team of dozens of members, we provide high-quality customized bearing products according to customer specifications.
Since 1982, we have accumulated over 40 years of experience in ceramic bearing production, continuously improving our materials, processing techniques, and equipment. Through evolution and transformation, we have become a leading enterprise in China's ceramic bearing and ceramic material products market.
We have extensive experience producing both external and internal gear pump sliding bearings in silicon carbide material, having supplied SSiC sliding bearings to Germany's Witte for many years.
Our Bearing Advantages
- Free sample bearings available
- Manufactured to ISO standards
- Various bearings in stock
- Small order quantities accepted
- OEM bearing services
- Customized bearings from customer drawings or samples
- Competitive factory pricing
Frequently Asked Questions
Q: Who are we?
A: We are a factory in Beijing, China with over 40 years of experience producing ceramic bearings. We have established cooperative relationships with many domestic and international companies.
Q: How do we guarantee quality?
A: We produce samples before mass production and strictly follow customer requirements. After production, we conduct precise inspections using specialized equipment. Our packaging uses foam and cartons for double protection to ensure product quality.
Q: What products do we offer?
A: Ceramic deep groove ball bearings, ceramic angular contact ball bearings, hybrid ceramic ball bearings, ceramic linear bearings, and various ceramic balls.
Q: Why choose us over other suppliers?
A: As an integrated industry and trade company with three factories and modern production/inspection equipment, we can provide better delivery times and superior product quality.
Q: What services do we provide?
A: We offer high-quality products and fully customized services according to user needs, including sample provision for customer confirmation.
Welcome Your Enquiry
We cooperate with raw material suppliers to ensure stable product quality and pricing, unaffected by international raw material fluctuations. When necessary, we can produce materials ourselves using proprietary technology.
Customer-focused, we strive to provide quality products and after-sales service, creating value as your trusted partner. We welcome discussions about potential cooperation!
