Material Introduction:
96% alumina ceramic is a practical material for custom alumina ceramic sleeves, ceramic bushings and insulating spacers. It offers a good balance of wear resistance, electrical insulation and cost performance, making it suitable for equipment assembly, shaft protection and precision ceramic components.
Functional Features:
Good wear resistance, stable electrical insulation, chemical resistance and reliable dimensional stability. The surface can be precision ground for better fitting, guiding, spacing and wear-resistant support in mechanical or electrical applications.
Application Industries:
Commonly used in pumps and valves, fluid control systems, automation equipment, electronic devices, precision machinery and new energy equipment. For pump-related ceramic parts, you can also view our ceramic pump components.
Delivery Time:
Standard specifications usually take 10–15 days. Custom sizes, tight tolerances or metallized surfaces will be confirmed based on drawings, quantity and processing requirements. You can send us your drawing for a quick review.
This 96% alumina ceramic sleeve offers robust wear resistance and electrical insulation, optimized for precision assemblies. Ideal for users requiring tailored industrial ceramic materials and custom alumina ceramic solutions.
This 96% alumina ceramic sleeve / bushing is used in equipment where metal or plastic parts may wear too quickly, conduct electricity, or become unstable in harsh working conditions. It can work as a ceramic shaft sleeve, insulating bushing, ceramic spacer, guide sleeve, pump sleeve or protective liner, depending on the drawing and assembly design.
96% alumina ceramic offers a practical balance between hardness, electrical insulation, chemical resistance and cost. For many mechanical and electrical applications, it is a reliable material choice when the part needs to protect shafts, reduce friction, keep components separated, or provide insulation inside the equipment.
We can manufacture custom alumina ceramic sleeves and bushings according to drawings or samples, including inner diameter, outer diameter, length, wall thickness, chamfer and surface finish. For pump-related ceramic parts, you may also visit our ceramic pump components page. If you already have a drawing, you can send it to us for a quick review.
The standard material for this product is 96% alumina ceramic. It is commonly used for wear-resistant ceramic parts, insulating ceramic components and precision ceramic bushings. Compared with higher-purity alumina, 96% alumina is often easier to control in regular production and offers a good cost-performance balance for industrial use.
| Parameter | Reference Value | Notes |
|---|---|---|
| Material | 96% Alumina Ceramic | Commonly used for ceramic sleeves, bushings and spacers |
| Alumina Content | Approx. 96% Al₂O₃ | Standard grade for wear and insulation applications |
| Density | Approx. 3.70–3.75 g/cm³ | Typical reference value |
| Hardness | Approx. 1500–1650 HV | Helps improve wear resistance |
| Compressive Strength | Approx. 2000–2500 MPa | Actual value depends on size and structure |
| Dielectric Strength | Approx. 15–18 kV/mm | Suitable for insulation-related applications |
| Max Working Temperature | Up to 1500°C | Actual use depends on working condition and product design |
| Surface Finish | Ra ≤ 0.4 μm available | Available after precision grinding |
| Custom Tolerance | Based on drawing | ID, OD, length and wall thickness can be customized |
It is usually used for shaft protection, wear resistance, electrical insulation, spacing, guiding and equipment support. Common applications include precision machinery, pumps, valves, electrical equipment and automation systems.
A ceramic sleeve is often used to cover or protect a shaft or internal part. A ceramic bushing is usually used for positioning, support, spacing or insulation. In custom projects, the same part may be called an alumina ceramic sleeve, ceramic bushing or ceramic shaft sleeve.
No. This product is mainly used as a ceramic sleeve, bushing, spacer or protective part. Alumina thermocouple insulators are mainly used for thermocouple wires and temperature sensor protection.
Yes. Inner diameter, outer diameter, length, wall thickness, chamfer and surface finish can be made according to your drawing or sample.
Alumina ceramic has good hardness, wear resistance, electrical insulation and chemical stability. It is useful when metal parts may wear, corrode or conduct electricity.
Yes. 96% alumina ceramic has good insulation performance and can be used as an insulating ceramic bushing, spacer or support component in electrical and electronic assemblies.
Yes. It can be used as a ceramic pump sleeve, guide sleeve, mechanical seal sleeve or wear-resistant support part in fluid control systems. You can also view more related parts on our ceramic pump components page.
We can provide as-fired, precision ground or polished surfaces. If the part needs better fitting or smoother contact, precision grinding is usually recommended.
Yes. Metallized alumina ceramic sleeves can be supplied for brazing or metal-to-ceramic joining, depending on the product structure and drawing requirements.
Please send the drawing, material requirement, size, tolerance, quantity, surface finish and working environment. If you do not have a drawing, you can contact us with a sample photo or basic size information first.
