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99.5% Alumina Ceramic Insulated Bearings Offering Exceptional Insulation And Precision Retention
99.5% Alumina Ceramic Insulated Bearings Offering Exceptional Insulation And Precision Retention
Specifications
Place of Origin :
Made In China
Brand Name :
Dayoo
MOQ :
Negotiable
Price :
Negotiable
Delivery Time :
Negotiable
Payment Terms :
Negotiable
Size :
customized
Materials :
92% alumina powder
Maximum Use Temperature :
1700c
Melting Point :
2040°C
Low Thermal Expansion :
Excellent
Thermal Expansion Coefficient :
8.2 × 10-6/°C
Application :
Industrial Ceramic
Max Operating Temperature :
1700°C
Shape :
Customizable (e.g. rods, tubes, plates)
Applications :
High temperature and high pressure environments, electronic and electrical components, medical and dental equipment, cutting tools, wear-resistant parts
Thermal Conductivity :
35 W/mK
Volume Resistivity :
10^14 Ω·cm
Hardness :
9 Mohs
Wear Resistance :
Very High
Corrosion Resistance :
Excellent
Description

99.5% Alumina Ceramic Insulated Bearings Offering Exceptional Insulation And Precision Retention

Product Introduction

Alumina ceramic insulated bearings are manufactured using 99.5% high-purity alumina ceramic material, offering exceptional electrical insulation properties and mechanical strength. By integrating alumina ceramic layers on the bearing rings' surfaces, these bearings provide complete electrical insulation, effectively preventing electrical corrosion - making them ideal for applications with electrical current risks.

Primary Applications

  • Electric Motors: Variable frequency motors, generator insulated bearings

  • Rail Transit: High-speed train traction motors

  • Wind Power: Wind turbine generator insulated bearings

  • Medical Equipment: MRI and medical imaging systems

  • Special Environments: Strong electromagnetic fields, highly corrosive conditions

Key Advantages

  1. Superior Insulation: >1000MΩ resistance, >3000V withstand voltage

  2. Excellent Corrosion Resistance: Withstands acids, alkalis and organic solvents

  3. Extended Service Life: 3-5 times longer lifespan by preventing electrical erosion

  4. Maintenance-Free Design: Eliminates additional insulation requirements

  5. Precision Retention: Stable ceramic coating maintains bearing accuracy

Technical Specifications

Parameter Specification
Ceramic Material 99.5% Al₂O₃
Insulation Resistance ≥1000MΩ(500VDC)
Withstand Voltage ≥3000V(AC)
Precision Grade ABEC-3/ABEC-5 options
Temperature Range -40℃ to +300℃
Size Range 10-200mm bore diameter
Ceramic Thickness 0.3-1.0mm customizable

Manufacturing Process

  1. Base Processing: Precision steel bearing base

  2. Surface Treatment: Base surface roughening

  3. Ceramic Coating: Plasma-sprayed alumina layer

  4. Precision Grinding: Ceramic surface finishing

  5. Assembly & Testing: Bearing assembly and insulation verification

  6. Packaging: Moisture/shock-proof packaging

Usage Guidelines

  1. Avoid impact on ceramic surfaces during installation

  2. Maintain operating humidity <80%RH

  3. Regularly monitor insulation resistance

  4. Use ceramic-compatible lubricants

  5. Use specialized tools during disassembly

Service Commitment

  • Dedicated technical support team

  • 48-hour response time

  • Complimentary selection consultation

  • Customization services available

FAQ

Q: Will the ceramic insulation layer detach?
A: Special process ensures >50MPa bond strength - won't detach under normal use

Q: Advantages vs traditional insulated bearings?
A: More stable insulation, significantly longer service life

Q: Maximum available size?
A: Currently up to 200mm bore, larger sizes customizable

99.5% Alumina Ceramic Insulated Bearings Offering Exceptional Insulation And Precision Retention

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99.5% Alumina Ceramic Insulated Bearings Offering Exceptional Insulation And Precision Retention

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Product Detail
Place of Origin :
Made In China
Brand Name :
Dayoo
MOQ :
Negotiable
Price :
Negotiable
Delivery Time :
Negotiable
Payment Terms :
Negotiable
Contact Supplier
99.5% Alumina Ceramic Insulated Bearings Offering Exceptional Insulation And Precision Retention

Dayoo Advanced Ceramic Co.,Ltd

Verified Supplier
2 Years
zhejiang, jinhua
Business Type :
Manufacturer, Distributor/Wholesaler, Exporter
Main Products :
Alumina Ceramic, Zirconia Ceramics, Silicon Nitride Ceramics
Total Annual :
>1000000
Employee Number :
>100
Certification Level :
Verified Supplier
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