loading……
Our goal:Our bearings, Your solutions!
professional manufacturer and distributor for special materials bearings
For procurement professionals and design engineers, every component choice impacts uptime, maintenance budgets, and long-term equipment reliability. The CE-6205-SiSiPE bearing is engineered to excel where conventional steel bearings fail—in high-speed, high-load, and extreme-temperature environments.
Manufactured by TOJO Bearing, this full ceramic bearing leverages silicon nitride (Si₃N₄) rings and balls with a PEEK cage, delivering exceptional strength, thermal shock resistance, and inherently low friction. It outperforms steel in durability and efficiency, ensuring reliable operation under the most demanding conditions.
Silicon nitride ceramic bearings offer distinct advantages over traditional steel bearings in demanding applications. Si₃N₄ is approximately 40% lighter than steel, significantly reducing centrifugal forces at high speeds. This enables higher rotational speeds with less heat generation, improving overall equipment efficiency and performance.
The material also provides excellent thermal shock resistance, withstanding rapid temperature changes without cracking or degradation. This makes Si₃N₄ bearings ideal for applications involving intermittent operation, rapid cycling, or exposure to extreme temperature gradients. Additionally, silicon nitride is non-magnetic and electrically insulating, eliminating the risk of electrical arcing damage in motors and generators.
| Feature | Steel 6205 Bearing | CE-6205-SiSiPE (Si₃N₄) |
|---|---|---|
| Material | Bearing Steel | Si₃N₄ Ceramic |
| Weight | Standard | ~40% Lighter |
| Electrical Insulation | No | Excellent |
| Corrosion Resistance | Limited | Excellent |
| High Temperature Capability | Limited (≤150°C) | Superior |
| Lubrication Requirement | Required | Reduced / Optional |
| Thermal Shock Resistance | Low | High |
| Wear Resistance | Moderate | Excellent |
| Service Life in Harsh Environments | Short | Extended |
| Specification | Value |
|---|---|
| Bearing No. | CE-6205-SiSiPE |
| Bearing Type | Full Ceramic Ball Bearing |
| Standard Size | 25 × 52 × 15 mm (Interchangeable with standard 6205) |
| Ring Material | Si₃N₄ (Silicon Nitride) |
| Ball Material | Si₃N₄ (Silicon Nitride) |
| Cage Material | PEEK |
| Lubrication | Dry Running / Optional |
| Electrical Insulation | Yes (Non-conductive) |
| Corrosion Resistance | Excellent |
| Temperature Capability | Si₃N₄ rings and balls can withstand extremely high temperatures; actual bearing operating limit depends on cage material, lubrication, speed, and load. |
| Max Speed | Higher than steel bearings (due to lower weight) |
| Customization | Available (size, cage, sealing, tolerance) |
Note: CE-6205-SiSiPE has the same mounting dimensions as standard steel 6205 bearings, making it a direct drop-in replacement for existing equipment.
Need a ceramic bearing solution for your application?
Send your operating conditions and get engineering recommendations.
[Get Technical Consultation]
Reduced Downtime, Lower Total Cost of Ownership
Steel bearings in high-speed or high-temperature applications often suffer from premature wear, thermal degradation, or fatigue. The CE-6205-SiSiPE is engineered for longevity. Its silicon nitride construction resists thermal shock, maintains dimensional stability at high temperatures, and operates with minimal friction. Fewer replacements mean less unplanned downtime and lower maintenance labor costs.
Eliminates Dependence on Conventional Lubrication
The low-friction properties of Si₃N₄ ceramic and the PEEK cage significantly reduce the need for regular regreasing. For operations with hard-to-reach bearings or strict cleanliness requirements (cleanrooms, food processing, vacuum systems), this feature reduces maintenance complexity and consumable costs.
Superior High-Speed Performance
Silicon nitride bearings are approximately 40% lighter than steel, drastically reducing centrifugal forces at high speeds. This enables higher rotational speeds with less heat generation, improving overall equipment efficiency and performance—a critical advantage for spindles, turbines, and high-speed machinery.
Non-Magnetic, Non-Contaminating
With zero magnetic signature, this bearing is essential for sensitive equipment like MRI machines, semiconductor fabrication tools, and aerospace guidance systems. It does not attract magnetic particles, ensuring cleaner operation in sterile or high‑purity environments.
Aerospace Components (actuators, turbines, guidance systems)
Automotive (electric vehicles, high-speed drivetrains)
Precision Machinery and high-speed spindles
Semiconductor Manufacturing equipment (cleanroom, vacuum, high-speed handling)
Medical Devices requiring high-speed precision (surgical tools, dental drills)
High-Temperature Furnaces and heat treatment lines
Turbomachinery and compressors
Motors & Generators requiring electrical insulation
Semiconductor Equipment: CE-6205-SiSiPE provides clean, non-magnetic, high-speed operation ideal for wafer handling and inspection tools.
High-Speed Spindles: Lighter weight reduces centrifugal forces, enabling higher RPM with better accuracy.
Electric Vehicles: Higher efficiency and lower friction contribute to improved energy economy.
Risk Reduction: Eliminates thermal degradation, high-speed wear, and lubrication failures—common causes of bearing replacement in critical high-performance equipment.
Cost Certainty: Higher initial cost is offset by extended service life, reduced maintenance, fewer production interruptions, and energy savings from lower friction.
Supply Chain Confidence: ISO-certified production ensures consistent quality and traceability for compliance requirements.
Versatility: One bearing type can be specified across multiple demanding applications, simplifying inventory management.
TOJO Bearing specializes in high-performance special bearings, including full ceramic bearings (Si₃N₄, ZrO₂), hybrid ceramic bearings, and customized solutions for aerospace, semiconductor, and precision equipment industries.
Our manufacturing capabilities include:
ISO 9001 certified production facility
Si₃N₄ ceramic material inspection and testing
Precision grinding and finishing processes
Bearing vibration and noise testing
Dimensional inspection with full traceability
Private labeling and packaging options
Flexible batch production from prototypes to mass production
With a dedicated engineering team and strict quality control at every stage, TOJO Bearing ensures consistent quality, reliable delivery, and long-term supply partnership for OEM customers worldwide.
Looking for a reliable ceramic bearing supplier?
Request a quote for OEM production or bulk orders.
[Request OEM Quote]
| Supply Feature | Detail |
|---|---|
| MOQ | Flexible (available for prototype orders and bulk production) |
| Production Capacity | High-volume manufacturing capability |
| Export Experience | Global supply to leading OEMs |
| Customization | Alternative materials, cages (PTFE), seals, and dimensions |
| Lead Time | Prototypes: 2-3 weeks; Mass production: 4-6 weeks |
| Packaging | Industrial packaging, private labeling available |
Direct manufacturer with full control over quality and cost
Customized ceramic bearing solutions tailored to your application
Engineering support for material selection and design optimization
Small batch prototype capability for testing and validation
OEM production experience with global industrial customers
Global supply capability serving Europe, North America, and Asia
Is CE-6205-SiSiPE interchangeable with standard steel 6205 bearings?
Yes. CE-6205-SiSiPE has the same 25 × 52 × 15 mm dimensions as standard 6205 bearings, making it a direct drop-in replacement for existing equipment.
What temperature can Si₃N₄ ceramic bearings withstand?
Silicon nitride ceramic rings and balls can withstand extremely high temperatures. The actual bearing operating limit depends on the cage material, lubrication condition, speed, and load.
Does a full ceramic bearing require lubrication?
Si₃N₄ bearings can run dry (without lubrication) in many applications, thanks to their low friction coefficient. However, optional lubrication may be used for specific conditions to further extend life.
What is the difference between hybrid ceramic and full ceramic bearings?
Hybrid bearings have ceramic rolling elements with steel rings, while full ceramic bearings have both rings and balls made of ceramic material. Full ceramic bearings offer superior electrical insulation, corrosion resistance, and thermal performance.
Can you supply customized ceramic bearings?
Yes. TOJO Bearing offers extensive customization in dimensions, materials, cages (PEEK, PTFE), seals, and tolerances to meet specific application requirements.
What is the minimum order quantity?
Our MOQ is flexible. We can supply prototype quantities for testing and bulk production for OEM projects. Contact us to discuss your specific needs.
Provide your application details for a technical review:
Application environment & operating conditions
Temperature, speed & load requirements
Preferred quantity & target lead time
Customization needs (dimensions, cage, etc.)
Our engineering team will evaluate and recommend the optimal ceramic bearing solution for your specific use case.
Get Technical Support & Bulk Pricing:
Request CAD Drawing
Get MOQ & Price
Send Your Application Requirement
Contact:
tbc@tbcbearing.com
www.tojobearings.com
Click here to contact our bearing specialists for a quotation or technical consultation.
Our bearings, Your solutions!
NO.23 JIAHE ROAD XIAMEN CHINA
The fines high quality special bearing for you!
