Skip to content

Full-Complement Silicon Nitride Full Ceramic Deep Groove Ball Bearing

High-performance ceramic bearing for extreme environments – up to 1200°C, non-magnetic, self‑lubricating

✔ OEM / Custom Support ✔ Fast Delivery ✔ Global Shipping
Request a Quote Download Specification
Full-Complement Silicon Nitride Full Ceramic Bearing

Technical Snapshot

MaterialSi₃N₄
Temperature Range–100°C to 1200°C
Key AdvantageSelf‑lubricating / non‑magnetic
Application LevelIndustrial, Medical, Aerospace
Load Capacity↑ 30% vs caged ceramic
Speed Limit1.3× steel bearings

Key Features

🔥

Ultra‑Wide High Temperature

Sustained 1200°C peak, stable at 800°C long‑term, no thermal jamming.

🧪

Corrosion & Chemical Resistant

Inert to acids, alkalis, seawater – no rust or pitting.

🧲

Non‑Magnetic & Insulating

Permeability <0.1H, ideal for sensitive electronic equipment.

⚙️

Self‑Lubricating

Runs oil‑free, reduces maintenance and consumable costs.

🚀

High Speed & Long Life

1.3× speed limit, 2× service life of steel bearings.

🔄

Low Friction & Smooth Rotation

Precision ground raceways for minimal resistance and vibration.

Application Industries

Industrial Machinery

Industrial Machinery

High‑temperature conveying rollers, smelting furnaces

Food Machinery

Food Machinery

Baking ovens, food processing conveyors

Chemical Equipment

Chemical Equipment

Reactor agitators, pipeline pumps, electroplating lines

Medical Equipment

Medical Equipment

Surgical robots, diagnostic imaging devices

Semiconductor Equipment

Semiconductor Equipment

Wafer handling, cleanroom robots, vacuum coaters

High‑Temperature Systems

High‑Temperature Systems

Furnace roller hearths, drying ovens, kiln cars

Technical Performance & Comparisons

Bearing structure

Advantages of the Full-Complement Silicon Nitride Design

  • Full complement structure maximizes rolling elements for superior radial load capacity
  • Retainer‑free design eliminates cage failure and allows higher operating speeds
  • Ultra‑low thermal expansion (22% of steel) ensures dimensional stability
  • Maintains mechanical strength up to 1200°C without degradation

🔹 Compared to metal bearings: 2× longer life, no rust, no lubrication needed.
🔹 Compared to standard plastic bearings: withstands 1200°C vs. ~150°C, much higher load capacity.

Product Structure

Bearing components
Outer Ring Silicon nitride, precision ground raceway
Inner Ring Silicon nitride, tight tolerances
Rolling Balls Full complement Si₃N₄ balls, no retainer
Self‑lubrication Inherent material property, oil‑free operation
Sealing Optional shields / seals upon request

Advantage Comparison

Silicon Nitride (Full-Complement)

  • ✔ 1200°C continuous operation
  • ✔ Self‑lubricating, no grease
  • ✔ Non‑magnetic, insulating
  • ✔ 2× longer service life
  • ✔ Resists acids, alkalis, seawater

Steel Bearings

  • ✖ Limited to ~150°C (grease dependent)
  • ✖ Requires regular lubrication
  • ✖ Magnetic, conductive
  • ✖ Prone to corrosion and seizure
  • ✖ Shorter lifetime in harsh environments

Standard Plastic Bearings

  • ✖ Max ~150°C, melt risk
  • ✖ Lower load capacity
  • ✖ Creep and deformation over time
  • ✖ Limited chemical resistance
  • ✖ Not suitable for high‑speed
Temperature resistance chart
Temperature resistance: stable up to 1200°C
Non‑conductive and self‑lubricating properties
Non‑magnetic, insulating & self‑lubricating
Stable rotation and low friction
Smooth, low‑friction operation

Product Selector – Find Your Model

Select a series and model, or search by model number to view specifications and request a quote.

Type Series Model Inner (mm) Outer (mm) Width (mm) RFQ
Please select a series or search a model to display specifications.

Frequently Asked Questions

Q1: What is the difference between full-complement and retainer‑type?
A: Full-complement bearings omit retainer, maximize rolling elements for higher radial load capacity – ideal for low‑speed heavy loads. Retainer type suits higher speeds. We can recommend based on your load and speed parameters.
Q2: Can it operate at 1000°C continuously?
A: Peak rating is 1200°C, but long‑term above 800°C may accelerate creep. We recommend sustained operation below 800°C for maximum life. For extreme applications, contact our engineering team.
Q3: Is grease lubrication required?
A: No, the bearing runs dry or in water due to self‑lubrication. In dusty conditions, a small amount of solid lubricant can extend life – we can pre‑apply upon request.
Q4: Resistance to strong acids / alkalis?
A: Silicon nitride resists most weak acids, alkalis, and seawater. For concentrated strong acids/alkalis, please provide your specific medium for evaluation.
Q5: Lead times?
A: Standard sizes in stock – samples ship in 1‑3 days. Bulk orders >50,000 pieces take 8‑16 working days.
Q6: Custom non‑standard dimensions?
A: Yes, we support OEM custom sizes. Contact us with your drawings for feasibility and quotation.
Related Solutions: Zirconia Full Ceramic Bearings Bearing Product Range silicon nitride ceramic bearing guide Ceramic Bearings vs. Steel Bearings

Contact Us for a Quote

Use this form to request a quote or discuss your custom fastener project. You can also reach us directly via the contact channels on the right.

Name

Need to send drawings or specifications?

Email your PDF, STEP, DWG, DXF or other reference files directly to [email protected], or send them via WhatsApp.

Email Your Drawings Send via WhatsApp

For production quoting, adding drawings, samples, or key dimensions will help us respond faster.

Direct Contact Channels

📘 Facebook ▶ YouTube ➤ Linkedin 💬 WhatsApp
  • One-stop service: design, customization, production, and global delivery
  • OEM/ODM solutions for industrial and export-oriented buyers
DISLAB Precision - Custom Fasteners