Alumina Ceramic Shafts
Alumina Ceramics Component
SKU: FWM/ALU-SHAFT-001
- Material
- Alumina
- Size
- Custom by drawing
- MOQ
- By quotation
- Applications
- Industrial Machinery
Solid alumina ceramic shafts and rods for guiding, rotating and electrically insulating industrial assemblies.
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Product Description
Solid alumina ceramic shafts and rods for guiding, rotating and electrically insulating industrial assemblies.
Alumina ceramic shafts are solid cylindrical components considered for guide, support, rotation or electrical-isolation functions in industrial equipment.
Alumina combines a rigid, wear-resistant working surface with electrical insulation, making one shaft useful for both mechanical guidance and isolation.
Product Features
- Solid Cylindrical Geometry
- Electrical Insulation
- Wear Resistance
- Finished wear-contact surfaces
Typical Applications
- Industrial Machinery — Guide shafts, rollers and precision supports
- Electrical Equipment — Insulating shafts and actuator components
Product Geometry & Configuration
Alumina Typical Material Properties
| Property | 95% Al₂O₃ | 99% Al₂O₃ | 99.5% Al₂O₃ | 99.8% Al₂O₃ | Condition / basis |
|---|---|---|---|---|---|
| Density (g/cm³) | 3.65 | 3.85 | 3.90 | 3.92 | — |
| Fracture toughness (MPa·m½) | 3–4 | 3–4 | 4 | 4 | — |
| Young’s modulus (GPa) | 320 | 340 | 370 | 390 | — |
| Flexural strength (MPa) | 300 | 330 | 375 | 390 | 25°C |
| Compressive strength (MPa) | 2200 | 2350 | 2450 | 2500 | 25°C |
| Thermal conductivity (W/(m·K)) | 18–22 | 27 | 29 | 32 | 25°C |
| Linear thermal expansion coefficient (10⁻⁶/K) | 8 | 8 | 8 | 8 | 25–1000°C |
| Dielectric strength (kV/mm) | 16 | 20 | 22 | 22 | — |
| Volume resistivity (Ω·cm) | 10¹⁴ | 10¹⁴ | 10¹⁴ | 10¹⁴ | 25°C |
| Relative permittivity | 9 | 9.7 | 9.7 | 9.8 | 1MHz, 25°C |
| Dielectric loss | 0.0004 | 0.0002 | 0.0002 | 0.0001 | 1MHz, 25°C |
| Vickers hardness (HV) | >1300 | 1700 | 1750 | 1800 | — |
| Material thermal-shock temperature difference, ΔT (°C) | 220 | 180–200 | 180–200 | 180–200 | — |
| Typical maximum material temperature (°C) | 1500 | 1650 | 1700 | 1700 | — |
Product Geometry & Configuration
| Product parameter | Configuration | Basis |
|---|---|---|
| Material system | Alumina | Material family; grade selected for the application |
| Component forms | Straight solid ceramic shafts; Ceramic rods in drawing-defined diameters; Custom end and interface features | Drawing-defined configurations |
| Geometry and dimensions | Custom by drawing | Part drawing and mating interfaces |
| Functional surfaces | Contact, locating, joining or insulating surfaces as applicable | Surface finish and acceptance criteria on the drawing |
Available Forms
Representative forms are shown for selection; final geometry follows the approved drawing.
- Straight solid ceramic shafts
- Ceramic rods in drawing-defined diameters
- Custom end and interface features
Packaging & Shipping
Packing and shipment arrangements are selected for the confirmed component geometry and surface requirements.
| Item | Details |
|---|---|
| Product protection | Protection method is selected for component geometry, surface condition and quantity. |
| Other commercial terms | Confirmed in quotation |
| Payment terms | T/T / Western Union / PayPal; 50% advance payment, 50% balance before shipment |
| Shipping methods | Sea freight / Air freight / Door-to-door courier |
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