71924 CDGC/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71924 CDGC/P4A Bearing Product Overview & Core Advantages
The 71924 CDGC/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Operating under P4A tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its 15° contact angle is optimized to handle significant combined loads—simultaneously supporting radial loads and substantial axial loads in one direction. The Universal Matchable (SU) designation allows for precise preloading when mounted in pairs, enabling optimal stiffness and system performance in demanding machinery.
71924 CDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71924 | Basic bearing designation indicating size series and bore diameter (120mm) |
| CD | Contact angle designation (15°) optimized for combined load capacity |
| GC | Preload classification (Moderate / Class C) for optimal rigidity |
| P4A | High-precision tolerance class ensuring exceptional running accuracy |
71924 CDGC/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (bore diameter tolerance: -0.004mm to 0) for applications requiring minimal runout and vibration.
Optimized Load Capacity: The 15° contact angle and robust construction provide excellent combined load handling with dynamic radial load rating of 17,550 lbf and static radial load rating of 20,588 lbf.
High-Speed Capability: Features a phenolic resin cage that reduces centrifugal forces and friction, enabling operation at limiting speeds up to 10,000 rpm.
Thermal Stability: The phenolic cage material maintains dimensional stability across the operating temperature range of -30°C to 110°C.
Precision Matching: As a Universal Matchable (SU) bearing, it can be precisely paired to achieve controlled preload and optimal system stiffness.
71924 CDGC/P4A Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers requiring exceptional rotational accuracy
- Precision Grinding Spindles - Applications demanding minimal vibration and high rigidity
- High-Speed Motors - Electric motors operating at elevated speeds with combined loading
- Industrial Pumps & Compressors - Equipment requiring reliable performance under axial and radial loads
- Robotic Systems - Precision joints and positioning mechanisms needing high accuracy bearings
- Aerospace Components - Critical rotating assemblies where precision and reliability are paramount
