S71912 ACDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S71912 ACDGA/HCP4A Bearing Product Overview & Core Advantages
The S71912 ACDGA/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. As a P4A tolerance class bearing with ceramic balls and phenolic cage, it delivers superior high-speed capability and thermal stability. Its 25° contact angle provides optimal combined load capacity, efficiently handling both radial and axial loads simultaneously. This bearing features sealed construction with pre-applied grease, making it ideal for high-rigidity applications where precision and reliability are critical.
S71912 ACDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
| 719 | High-precision angular contact ball bearing series |
| 12 | Bore diameter code (60 mm) |
| ACD | 25° contact angle design |
| GA | Universal matching bearing (SU designation) |
| HC | Hybrid ceramic balls |
| P4A | High precision tolerance class |
S71912 ACDGA/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction, extends service life, and enables higher operating speeds while maintaining dimensional stability across the temperature range of -30°C to 110°C.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (bore diameter tolerance: -0.004mm to 0), ensuring exceptional running accuracy and minimal vibration for precision applications.
Optimized Load Capacity: The 25° contact angle and 24 ceramic balls provide excellent combined load capacity with radial dynamic load rating of 4185 lbf and radial static load rating of 3285 lbf.
High-Speed Performance: The phenolic cage and hybrid ceramic construction contribute to the impressive limiting speed of 36,000 rpm, making it suitable for high-speed spindle applications.
Sealed & Lubricated: Pre-greased and sealed design provides maintenance-free operation while protecting against contamination in demanding environments.
S71912 ACDGA/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and precision grinding machines
- Precision Instrumentation: Measuring equipment and laboratory instruments requiring extreme accuracy
- High-Speed Motors: Spindle motors and high-frequency applications
- Aerospace Components: Guidance systems and precision positioning mechanisms
- Medical Equipment: Dental handpieces and surgical tools requiring reliability and precision
- Robotics: High-precision robotic joints and positioning systems
