S71922 ACDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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S71922 ACDGA/HCP4A Bearing Product Overview & Core Advantages
The S71922 ACDGA/HCP4A is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and rigidity. This single bearing features a 25° contact angle and is manufactured to P4A super-precision tolerance standards. Its core advantage lies in its ability to handle combined radial and axial loads simultaneously with high stability. The use of ceramic balls and a phenolic cage contributes to superior high-speed performance, reduced weight, and extended service life, making it ideal for ultra-precise, high-reliability spindle applications.
S71922 ACDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| S7 | Series designation for high-precision angular contact ball bearings. |
| 1922 | Bore diameter: 110 mm, Outside diameter: 150 mm, Width: 20 mm. |
| AC | Angular Contact design with a 25° contact angle. |
| D | Two-piece phenolic resin cage. |
| GA | Universal Matchable (SU) bearing, supplied in a set of 3 for preload adjustment. |
| HC | Hybrid Ceramic: Steel rings with ceramic balls. |
| P4A | Super-precision tolerance class, exceeding ABEC 7/ISO P4. |
S71922 ACDGA/HCP4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: Manufactured to P4A tolerance class with extremely tight dimensional runouts, this bearing provides exceptional rotational accuracy and system stiffness, crucial for minimizing deflection under load.
Superior High-Speed Capability: The combination of a lightweight phenolic cage and low-density ceramic balls significantly reduces centrifugal forces, enabling a high limiting speed of 10,000 rpm. This design also reduces operating temperature and improves dynamic performance.
Enhanced Load Capacity: The 25° contact angle is optimized to support significant combined loads, offering a robust solution for applications with complex loading conditions.
Universal Matching Design: The GA suffix indicates that the bearing is Universal Matchable (SU). Supplied in sets of three, these bearings can be arranged in various duplex configurations (e.g., back-to-back, face-to-face) to achieve specific preload and rigidity requirements.
Long-Term Reliability: The bearing is pre-lubricated with grease suitable for a temperature range of -30°C to 110°C, ensuring immediate operation and long-term performance in demanding environments.
S71922 ACDGA/HCP4A Bearing Typical Application Areas
The S71922 ACDGA/HCP4A is specifically designed for high-performance applications where precision, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Aerospace & Defense: Gyroscopes, radar systems, and navigation equipment.
- Medical Equipment: High-speed dental handpieces and imaging scanner rotors.
- Semiconductor Manufacturing: Wafer handling robots and precision stages.
