71952 ACD/P4ADBB
71900 Series Super Precision Angular Contact Ball Bearings
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71952 ACD/P4ADBB Bearing Product Overview & Core Advantages
The 71952 ACD/P4ADBB is a precision duplex angular contact ball bearing designed for high-performance industrial applications. This matched back-to-back (DB) arrangement provides exceptional system rigidity and stability, enabling it to handle combined radial and axial loads simultaneously. Manufactured to P4A tolerance class, it delivers superior running accuracy, making it ideal for demanding, high-speed machinery requiring precise shaft positioning and long-term operational reliability.
71952 ACD/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71952 | Basic bearing designation indicating size series and bore diameter |
| ACD | Angular Contact Design with 25° contact angle |
| P4A | High precision tolerance class with enhanced running accuracy |
| DB | Duplex Back-to-Back arrangement for high rigidity |
| B | Light preload classification for optimal performance |
71952 ACD/P4ADBB Bearing Structural Features & Performance Benefits
Enhanced Rigidity: The duplex back-to-back configuration creates a rigid bearing system that effectively resists moment loads and maintains precise shaft alignment under heavy combined loads.
Superior Load Capacity: With a 25° contact angle and optimized internal geometry, this bearing delivers excellent performance handling both radial loads (98,100 lbf dynamic) and bidirectional axial loads simultaneously.
High-Speed Capability: The phenolic cage material provides excellent strength-to-weight ratio, enabling stable operation at limiting speeds up to 4,500 rpm while reducing centrifugal forces.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (bore/OD tolerance: -0.004mm to 0), ensuring minimal runout and vibration for smooth, accurate rotation in precision applications.
71952 ACD/P4ADBB Bearing Typical Application Areas
This high-precision duplex bearing is specifically engineered for demanding applications including:
- Machine Tool Spindles - High-speed machining centers and precision grinding machines
- Industrial Pumps & Compressors - Handling axial and radial loads in rotating equipment
- Precision Gearboxes - Providing rigid support in transmission systems
- Robotics & Automation - High-accuracy positioning systems and robotic joints
- Aerospace Components - Critical rotating assemblies requiring high reliability
