71922 ACD/P4ADBA
71900 Series Super Precision Angular Contact Ball Bearings
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71922 ACD/P4ADBA Bearing Product Overview & Core Advantages
The 71922 ACD/P4ADBA is a duplex back-to-back (DB) angular contact ball bearing designed for applications requiring high precision and exceptional rigidity. Manufactured to P4A tolerance class, this bearing is engineered to handle combined radial and axial loads simultaneously. Its extra light preload (Class A) ensures minimal deflection and optimal performance in high-speed, high-accuracy environments. The use of a phenolic cage contributes to its smooth operation at the specified limiting speed of 16,000 rpm, making it an ideal choice for demanding industrial applications.
71922 ACD/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle |
| D | Duplex Back-to-Back (DB) arrangement |
| P4A | High precision tolerance class with enhanced running accuracy |
| DB | Specific mounting arrangement code for back-to-back duplex set |
| A | Indicates extra light preload for minimal deflection |
71922 ACD/P4ADBA Bearing Structural Features & Performance Benefits
Enhanced Rigidity: The duplex back-to-back arrangement creates a rigid bearing system that effectively resists moment loads, providing stable support for rotating components. This configuration significantly increases system stiffness compared to single bearings.
Superior Load Capacity: With a 25° contact angle and optimized internal geometry, this bearing efficiently handles combined radial and axial loads in both directions. The radial dynamic load rating of 21,510 lbf and static load rating of 30,825 lbf ensure reliable performance under demanding conditions.
High-Speed Capability: The phenolic cage material offers excellent strength-to-weight ratio and smooth operation, contributing to the bearing's ability to reach 16,000 rpm limiting speed. This makes it suitable for high-speed applications requiring precision and reliability.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (bore and OD tolerance: -0.004mm to 0), this bearing ensures minimal runout and vibration for applications demanding high rotational accuracy.
71922 ACD/P4ADBA Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers and grinding machines
- Precision Gearboxes - Industrial transmission systems requiring high rigidity
- High-Speed Motors - Electric motors and generators operating at elevated speeds
- Industrial Pumps - Centrifugal and process pumps handling combined loads
- Aerospace Components - Aircraft systems demanding precision and reliability
- Robotics and Automation - Precision robotic arms and automated positioning systems
