71944 CDGA/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71944 CDGA/P4A Bearing Product Overview & Core Advantages
The 71944 CDGA/P4A is a single-row angular contact ball bearing designed for ultra-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class with extra light preload (Class A), this bearing delivers superior running precision and minimal vibration. Its 15° contact angle provides optimal performance for combined radial and axial loads, while the universal matching capability (SU) enables precise bearing arrangements in multi-bearing configurations. The phenolic cage ensures stable operation at high speeds, making it ideal for demanding applications where high rigidity and precision positioning are critical.
71944 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CDGA | 15° contact angle with universal matching designation | Enables precise bearing arrangements in sets; optimized for combined loads |
| P4A | ABEC 7 precision class with enhanced running accuracy | Superior rotational precision and minimal vibration |
71944 CDGA/P4A Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy and running precision.
Optimized Load Capacity: The 15° contact angle design enables efficient handling of combined radial and axial loads, with dynamic load rating of 49,725 lbf and static load rating of 67,500 lbf.
High-Speed Performance: The phenolic resin cage provides excellent dimensional stability and reduced friction, supporting a limiting speed of 11,000 rpm while maintaining operational reliability.
Precision Preload: Extra light preload (Class A) minimizes deflection under load while maintaining smooth operation, essential for applications requiring high positional accuracy.
Universal Matching Capability: Designed as universal matchable bearings (SU), allowing for precise arrangement in sets of 3 bearings with predetermined preload and optimal load distribution.
71944 CDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers requiring exceptional rotational accuracy
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus
- Aerospace Systems: Guidance systems, flight control mechanisms, and navigation equipment
- Medical Equipment: High-speed dental handpieces, surgical robots, and diagnostic imaging systems
- Semiconductor Manufacturing: Wafer handling robots, precision positioning stages, and inspection equipment
