71922 ACD/P4AQGA
71900 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
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71922 ACD/P4AQGA Bearing Product Overview & Core Advantages
The 71922 ACD/P4AQGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. Engineered with a 25° contact angle and manufactured to P4A tolerance class, this bearing excels at handling combined radial and axial loads simultaneously. Its universal matchable (SU) design allows for flexible mounting arrangements in preloaded sets, delivering optimized performance and high rigidity in compact spaces. Pre-lubricated for immediate use, it operates reliably within a temperature range of -30°C to 110°C, making it an ideal solution for high-speed, high-precision machinery.
71922 ACD/P4AQGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| ACD | 25° Contact Angle, Universal Matchable | Optimized for combined loads and flexible mounting in sets |
| P4A | High Precision Tolerance Class | Ensures exceptional running accuracy and minimal vibration |
| QGA | Extra Light Preload (Class A) | Provides minimal starting torque and high-speed capability |
71922 ACD/P4AQGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design with a 25° contact angle and double-row equivalent performance through universal matching provides superior rigidity and the ability to handle significant combined radial and axial loads.
- Precision & Speed: Manufactured to P4A tolerance standards and featuring a lightweight phenolic cage, this bearing achieves a high limiting speed of 10,000 rpm with exceptional running accuracy.
- Optimized Component Materials: The use of chrome steel for rings and balls ensures high durability and fatigue resistance, while the phenolic cage contributes to smooth operation at high speeds.
- Matched Set Versatility: The Universal Matchable (SU) designation allows bearings to be mounted in various preloaded configurations (e.g., back-to-back, face-to-face) using a set of 4 bearings, enabling precise system stiffness tuning.
71922 ACD/P4AQGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers requiring precision and rigidity.
- Precision Gearboxes: Applications demanding high rotational accuracy and minimal backlash.
- High-Frequency Motors and Spindles: Where high limiting speed and reliable performance are critical.
- Medical and Laboratory Equipment: Centrifuges and precision instruments that operate at high speeds with minimal vibration.
- Robotic Arm Joints and Precision Drives: Providing high rigidity and accuracy in automated systems.
