71952 ACDGA/P4AL
71900 Series Super Precision Angular Contact Ball Bearings
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71952 ACDGA/P4AL Bearing Product Overview & Core Advantages
The 71952 ACDGA/P4AL is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. Engineered to a P4A tolerance class, it offers superior dimensional stability and running accuracy. Its primary advantage lies in its ability to accommodate combined loads, efficiently handling both radial and significant axial loads in one direction. The extra light preload (Class A) minimizes deflection under operational stresses, making it ideal for high-speed spindles and other high-rigidity applications. This bearing is universally matchable (SU), allowing for precise axial play adjustment when mounted with other bearings.
71952 ACDGA/P4AL Bearing Model Code Explained, Specifications & Naming Convention
- AC: Angular Contact design, optimized for combined loads.
- D: High contact angle of 25°, providing superior axial load capacity.
- GA: Indicates a specific internal design and clearance for universal matching (SU).
- P4A: Denotes an ultra-precision tolerance class exceeding ABEC 7 standards, ensuring minimal runout and vibration.
- L: Signifies the bearing is lubricated from the factory for immediate use.
71952 ACDGA/P4AL Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4A tolerances with an extra light preload, this bearing provides maximum system stiffness and rotational accuracy, critical for machine tool spindles.
- Superior Load Capacity: The 25° contact angle and robust construction using chrome steel rings and balls enable high dynamic and static load ratings (59,625 lbf and 90,000 lbf respectively).
- Optimized High-Speed Performance: The lightweight phenolic resin cage ensures stable operation and low friction at high speeds, with a limiting speed of 4,500 rpm.
- Universal Matchability (SU): This feature allows for precise control over internal clearance and preload by pairing with other SU-coded bearings, simplifying assembly and optimizing performance in complex arrangements.
71952 ACDGA/P4AL Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes: Applications requiring high positional accuracy and rigidity.
- High-Frequency Motors and Spindles: Where minimal runout and vibration are paramount.
- Aerospace and Defense Systems: Gyroscopes, radar equipment, and other precision instruments.
