An ceramic angular contact ball bearing is a type of angular contact bearing that uses ceramic balls instead of traditional steel ones. These bearings are designed to handle combined radial and axial loads—particularly where high precision, speed, and reliability are required.
Here’s a breakdown of its features and applications:
1.Key Features：
I.Ceramic Balls (usually Silicon Nitride, Si₃N₄):
Lighter and harder than steel.
Non-conductive, suitable for electrical insulation.
Lower density = less centrifugal force at high speeds.
Highly resistant to wear, corrosion, and heat.
II.Angular Contact Design:
Typically has a contact angle (15°, 25°, or 30°), enabling it to handle axial loads in one direction.
Often used in pairs or sets to accommodate axial loads in both directions or combined loads.
III.High-Speed Capability:
Low friction + lightweight ceramic balls = excellent for high-speed applications.
IV.Longer Service Life:
Less heat generation and wear compared to steel bearings.
2.Applications
Machine tool spindles
Electric motors (especially high-speed or high-frequency types)
Aerospace
Semiconductor manufacturing
Dental or medical equipment
Wind turbines
3.Example Designation
7205C-HC-P4-CE Si₃N₄
7205C: Angular contact bearing with 25° contact angle
HC: Hybrid ceramic (ceramic balls + steel rings)
P4: High precision
CE: Preload specification
For more information, feel free to contact QIBR