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Help CenterCeramic Hybrid Precision Bearing 6200 Series Si3N4 Balls for High Temperature 800°C
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Henan San Kuang Machinery Technology Co., Ltd. proudly presents our Ceramic Hybrid Precision Bearing 6200 Series, featuring Si3N4 (silicon nitride) balls engineered for extreme environments up to 800°C. Since our establishment in 2014, we have specialized in advanced bearing solutions, backed by a 10,000–30,000 square meter factory and a team of 51–100 experienced professionals. Our products are trusted by clients across North America, Europe, Asia, and Africa, with annual export values exceeding US$2.5 million.
This hybrid bearing combines the strength of steel rings with the exceptional thermal stability and hardness of ceramic balls, delivering unmatched performance in high-temperature applications. Whether you require reliable operation in industrial furnaces, jet engines, or high-speed spindles, the 6200 series with Si3N4 balls is your ideal choice.
Key Features & Technical Specifications
- Temperature Resistance: Continuous operation up to 800°C without degradation, thanks to Si3N4 ceramic balls (low thermal expansion, high hardness).
- Hybrid Design: Outer and inner rings made of high-carbon chrome steel (AISI 52100) or stainless steel (optional) for strength, combined with ceramic balls for reduced friction and wear.
- High Speed Capability: Ceramic balls are 60% lighter than steel, enabling higher rotational speeds with lower centrifugal forces.
- Corrosion & Chemical Resistance: Si3N4 is inert to most acids and alkalis, ideal for harsh environments.
- Long Service Life: Reduced friction and heat generation extend bearing life significantly compared to all-steel bearings.
- ISO Precision Standards: Available in P0, P6, and P5 accuracy classes (customizable upon request).
- Lubrication Options: Suitable for high-temperature greases (up to 300°C) or dry running (no lubrication needed for many applications).
| Parameter | Specification |
|---|---|
| Bearing Series | 6200 (e.g., 6200, 6201, 6202, 6203, 6204, 6205, 6206) |
| Ball Material | Si3N4 (Grade 5 or Grade 10, optional) |
| Ring Material | Chrome steel (AISI 52100) or stainless steel (AISI 440C) – optional |
| Max Temperature | 800°C (continuous) – 900°C (peak, short duration) |
| Dynamic Load Rating (C) | 4.0 – 19.5 kN (varies by size) |
| Static Load Rating (C0) | 2.0 – 11.5 kN (varies by size) |
| Limiting Speed (oil) | 30,000 – 60,000 rpm (depends on size and lubrication) |
| Cage Material | PEEK, PTFE, or brass (optional) |
| Seals/Shields | Open, ZZ (metal shield), 2RS (rubber seal up to 200°C) – customizable |
Why Choose Our Ceramic Hybrid Bearing? The unique combination of Si3N4 balls and precision steel rings delivers a product that stands up to the most demanding conditions. In high-temperature environments, conventional steel bearings fail due to softening, expansion, and lubricant degradation. Our hybrid bearing overcomes these issues: the ceramic balls maintain their hardness and dimensional stability, while the steel rings provide robust structural support. Benefits include:
- Reduced Maintenance: Longer service intervals even in continuous high-heat operations.
- Energy Efficiency: Lower friction reduces power consumption by up to 30% compared to all-steel bearings.
- Improved Reliability: Consistent performance under thermal cycling and shock loads.
- Versatility: Suitable for dry running, minimizing contamination risks in food or pharmaceutical equipment.
At Henan San Kuang Machinery Technology Co., Ltd., we are committed to quality and innovation. Our factory holds multiple certifications including ISO9001, ISO14000, SA8000, TL900, OHSAS18001, and many others, ensuring every bearing meets rigorous international standards. We export to over 15 markets globally, with main ports including Shanghai, Lianyungang, Qingdao, and Tianjin. Our experienced team (51–100 employees) and annual export value of US$2.5–5 million attest to our reliability and customer satisfaction.
Don't settle for bearings that fail when temperatures rise. Choose the Ceramic Hybrid Precision Bearing 6200 Series with Si3N4 balls and experience performance that lasts. We offer customized solutions – from bore size to cage material – to meet your exact requirements. Contact us today for a quote or technical consultation. Your application deserves the best; we are ready to deliver.
Frequently Asked Questions
- Can this bearing operate at 800°C continuously? Yes, the Si3N4 balls and specially selected steel rings (with appropriate heat treatment) allow continuous operation up to 800°C. For peak temperatures up to 900°C, short-term exposure is acceptable.
- What lubrication is required for high-temperature use? For temperatures above 300°C, standard greases degrade. We recommend solid lubricants (e.g., MoS2 coating) or dry running. The ceramic balls have low friction, so many applications run without lubrication.
- Is the 6200 series available in different sizes? Yes, the 6200 series includes multiple sizes: 6200, 6201, 6202, 6203, 6204, 6205, 6206, etc. Bore diameters range from 10mm to 30mm; outer diameters from 30mm to 62mm. Please specify your required dimensions.
- Can I get a custom cage material? Absolutely. We offer cages in PEEK, PTFE, brass, and steel. For high-temperature applications, PEEK or brass are commonly used. Contact us for recommendations.
- What is the typical lead time? Standard sizes are usually in stock and ship within 7–15 days. Custom orders may require 20–30 days, depending on complexity.
- Do you provide test reports or certifications? Yes, we can provide material certificates, dimensional inspection reports, and a certificate of conformity (CoC) upon request. Our factory is ISO9001, ISO14000, and SA8000 certified.
- Are these bearings suitable for vacuum environments? Si3N4 balls perform well in vacuum due to low outgassing. However, please verify the seal type – open bearings are recommended for vacuum; rubber seals may not be suitable.
- What is the maximum speed for a 6203 size? For a 6203 bearing (17x40x12 mm), the limiting speed with oil lubrication is approximately 40,000 rpm. With grease, it is lower. Actual speed depends on load and cooling. Contact our engineers for detailed calculations.
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