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Industrial Alumina Ceramic Bush
Alumina Ceramic Bushing Insulator Ceramic Sleeve Alumina Ceramic Bushing Insulator Ceramic Sleeve Alumina Ceramic Bushing Insulator Ceramic Sleeve Alumina Ceramic Bushing Insulator Ceramic Sleeve Alumina Ceramic Bushing Insulator Ceramic Sleeve

Alumina Ceramic Bushing Insulator Ceramic Sleeve

Ceramic bushing is a ceramic connector for industry parts. Alumina bushing can be welding, adhesive, inset with the metals using for the industry parts. Available in various sizes and shapes.
  • item no. :

    • Purity Available

      90% 92% 95% 99.5% 99.7% 99%

    • Material : Alumina ceramic

    • Shape : OEM

    • Size : OEM

  • description

Alumina Ceramic Bushing Insulator Ceramic Sleeve


1. Alumina bushing is highly resistant to wear and abrasion, providing a long service life.

2. Non-toxic and non-magnetic, making it ideal for use in medical and food processing applications.

3. Highly heat resistant, making it suitable for use in high temperature applications.

4. It is dimensionally stable, providing excellent accuracy and repeatability in machining processes.

5. Corrosion resistant, making it suitable for use in highly corrosive environments.

6. Lightweight and has good electrical insulation properties.

7. Available in a variety of sizes and shapes to fit any application.


1. Alumina ceramic bushing insulator is a high-performance electrical device designed to protect electrical components from short-circuiting.

2. It is commonly used in motors and other electrical equipment, providing insulation and protection from shock and wear.

3. Aluminaceramic bushing insulator is a high-performance insulating material used to provide electrical insulation and thermal insulation in electrical equipment and machinery.

4. It is composed of alumina ceramic, a highly-durable material with excellent electrical and thermal conductivity.

5. It is ideal for use in high temperature and harsh environmental applications.

Size details

Alumina ceramic bushing
Item NO. ID (mm) OD (mm)
G (mm) ID (mm) OD (mm)
G (mm)
CS-B-01 1.75 4 6 7 2 8.4 15 12 18 3
CS-B-02 2.55 5 6 8 2 10.8 18 12 22 4
CS-B-03 4.5 8 12 11 2.5 14.5 22 28 26 4

OEM/ODM is acceptable. Your goods will be produced exactly according to your drawings or inquiry

Technical reference

CS Ceramic's products accuracy
Shaft part: 0.0015mm for axial dimensions
0.001mm for circular degree
0.0025mm for concentricity
0.01 for roughness
The minimum processing aperture: 0.3mm, and depth limit 3mm
0.002mm for axial dimensions of diameter 1mm aperture
0.02~0.04 for roughness
Tolerance of plane processing: 0.002 for flatness
0.0015mm for measuring tolerance
Ceramic processing thread: Processing internal thread size limit M2
Thread accuracy gb-7h
Unlimited size for external thread
Thread accuracy gb-6g

Parameters of Alumina Ceramic

Item Test Condition 95% Al2O3 99% Al2O3 99.5% Al2O3
Physical properties Density g/cm3 >3.6 3.89 3.96
Moisture absorption % 0 0 0
Mechanical properties ROHS Hardness ≥85 ≥89 ≥89
Flexural strength psiX103 20℃ 358 550 550
Compressive strength psiX103 20℃ 2068(300) 2600(377) 2600(377)
Fracture toughness Mpa.m3/2 K(l c) 4.3 5.6 6
Thermal properties Maximum use temperature 1450 1600 1650
Thermal expansion coefficient 1X10-6/℃ (25-1000℃) 7.6 7.9 8.2
Thermal shock resistance Tc 250 200 200
Thermal conductivity w/mok 20℃ 16 30 30.4
Electrical properties Volume resistivity Ohm/cm2 100℃ >1013 >1014 >1014
Dielectric breakdown strength KV/mm 8.7(220) 8.7(220) 8.7(220)
Dielectric constant (E) 1MHz25℃ 9 9.7 9.7
Dielectric constant (100MHz) (E) 9.5


1. Alumina bushing insulator can be used as electrical insulators in high voltage power lines and substations.

2. It can be used in the automotive industry as an insulating material between engine components. The material's resistance to heat and electrical conduction make it suitable for this purpose.

3. Used in the aerospace industry to insulate delicate electronics from the extreme temperatures encountered during flight. The material's remarkable insulation properties make it ideal for this application.

4. Used in the medical industry to manufacture components of medical equipment such as X-ray machines. The material's resistance to electrical conduction and heat makes it ideal for this purpose.

5. Used in the telecommunications industry to insulate sensitive electronic components from electrical and thermal shock. The material's excellent insulation properties make it well-suited for this purpose.


Q1. What information should we supply to get a quote?

Please offer the specification of alumina bushing insulator, such as shape, dimension, quantity, application etc.

Q2. What is the difference between alumina bushing insulator and other types of insulators?

Alumina bushing insulator is more durable and can withstand higher temperatures than other types of insulators. It also offers superior electrical insulation, excellent arc resistance, and low maintenance.

Q3. How is alumina bushing ceramic insulator installed?

Alumina bushing ceramic insulators are typically installed in one of two ways. The first is by adhering the insulator directly to the surface of the electrical component. The second is by using a mounting bracket, which is attached to the component and then secured to the insulator.

Q4. What is the lifespan of alumina bushing insulators?

The lifespan of alumina bushing insulators depends on the specific application and environment in which they are used. Generally, they can be used for several years with proper use and maintenance.

How to clean alumina ceramic bushing insulator

1. First, wipe the alumina bushing ceramic insulator with a damp cloth to remove dust and dirt.

2. Use a soft bristle brush and a mild detergent solution to scrub the alumina bushing ceramic insulator.

3. Wash the alumina bushing ceramic insulator with clean water, and then dry it with a soft cloth.

4. Ensure that the alumina bushing ceramic insulator is dry when used next time.

Quality testing standards

1. Visual inspection of the alumina bushing insulator for any signs of damage or irregularities.

2. Measurement the dimensions of the alumina bushing insulator to check for accuracy.

3. Checking for any pinhole defects in the alumina bushing insulator.

4. Verification of the material and chemical composition of the alumina bushing insulator.

Packing way

Production Process

Why Choose us?

1. We supply personalized and customized services to contact your personal needs.

2. We are experienced professionals with a good record of success.

3. We provide superior client service and promptly respond to all inquiries.

4. We provide militant prices and strive to ensure that your funds receive the best value.

5. We use the latest technologies and tools to ensure that your project is completed to the highest standards.


If you have questions or suggestions,please leave us a message,

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