S71920 ACE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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S71920 ACE/HCP4ADGA Bearing Product Overview & Core Advantages
The S71920 ACE/HCP4ADGA is a high-precision, double row angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. Engineered to simultaneously handle combined loads (radial and bidirectional axial loads), its compact design offers a space-saving solution. Featuring a P4A super-precision tolerance class, ceramic balls, and a phenolic cage, this bearing is optimized for high-speed operation and delivers superior rigidity and long service life in critical machinery.
S71920 ACE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7 | High-precision angular contact bearing series |
| 1920 | Bore diameter: 100 mm, Outside diameter: 140 mm, Width: 40 mm |
| ACE | 25° contact angle, universal matchable (SU) design |
| HC | Hybrid ceramic balls (silicon nitride) |
| P4A | Super precision tolerance class (exceeds ABEC 7) |
| DGA | Sealed on both sides, pre-lubricated with grease |
S71920 ACE/HCP4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design provides superior stiffness and enables the bearing to support significant combined radial and axial loads from both directions, making it ideal for applications with complex loading conditions.
Enhanced High-Speed Performance: The combination of a lightweight phenolic resin cage and low-friction ceramic balls significantly reduces centrifugal forces and operating temperatures, allowing for a high limiting speed of 16,250 rpm.
Precision & Longevity: Manufactured to P4A tolerance standards, this bearing ensures minimal runout and vibration. The integral seals and factory-applied grease provide effective contamination protection and maintenance-free operation throughout its service life.
S71920 ACE/HCP4ADGA Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance applications including:
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Advanced Robotics and Automation Systems
