Alumina Ceramic Bushings
Alumina Ceramics Component
SKU: FWM/ALU-BUSHING-001
- Material
- Alumina
- Size
- Custom by drawing
- MOQ
- By quotation
- Applications
- Industrial Machinery
Precision alumina ceramic bushings for electrical isolation, wear guidance and drawing-based equipment interfaces.
Browse Products
Alumina Ceramic Products
Zirconia Ceramic Products
Silicon Carbide Products
Silicon Nitride Products
Aluminum Nitride Products
Product Description
Precision alumina ceramic bushings for electrical isolation, wear guidance and drawing-based equipment interfaces.
Alumina ceramic bushings are cylindrical guide or isolation components used around shafts, fasteners and equipment interfaces.
A hard ceramic bore resists wear at the guiding surface, while the electrically insulating body can separate a shaft or fastener from its housing.
Product Features
- Precision Bore
- Electrical Insulation
- Wear Guidance
- Drawing-Based Customization
Typical Applications
- Industrial Machinery — Guide, isolation and wear interfaces
- Electrical Equipment — Insulating sleeves and mounting bushings
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 cylindrical bushings; Flanged and stepped bushings; Cross-drilled or threaded forms by drawing | 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 cylindrical bushings
- Flanged and stepped bushings
- Cross-drilled or threaded forms by drawing
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 |
Related Alumina Ceramics Products
Explore related products within the same canonical family.
