71926 CDGC/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71926 CDGC/P4A Bearing Product Overview & Core Advantages
The 71926 CDGC/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Operating under P4A super-precision tolerance class with a Moderate (Class C) preload, this bearing delivers superior running accuracy and stiffness for demanding applications. Its 15° contact angle is optimized to handle combined radial and axial loads simultaneously, while the universal matching capability (SU) allows for flexible mounting arrangements in multi-bearing configurations. The phenolic cage ensures stable operation at high speeds up to 7,500 rpm, making it ideal for precision machinery where reliability and performance are critical.
71926 CDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71926 | Basic bearing designation with 130mm bore diameter |
| C | 15° contact angle design |
| DG | Universal matchable bearing (can be paired in any combination) |
| C | Moderate preload (Class C) |
| P4A | Super precision tolerance class with enhanced running accuracy |
71926 CDGC/P4A Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance class with tight dimensional control (bore/OD tolerance: -0.004mm to 0), ensuring exceptional running accuracy and minimal vibration.
Optimized Load Capacity: The 15° contact angle and 27 chrome steel balls provide excellent combined load capacity (dynamic: 20,768 lbf, static: 24,300 lbf), making it suitable for applications with significant radial and axial load components.
High-Speed Performance: The phenolic resin cage offers superior strength-to-weight ratio, enabling stable operation at limiting speeds of 7,500 rpm while reducing centrifugal forces and friction.
Thermal Stability: The phenolic cage material maintains dimensional stability across the operating temperature range of -30°C to 110°C, ensuring consistent performance in varying thermal conditions.
Precision Preload: The Moderate Class C preload eliminates internal clearance, providing immediate high rigidity and precise shaft positioning without requiring additional adjustment.
71926 CDGC/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers requiring superior running accuracy
- Precision Gearboxes: Industrial transmission systems demanding high rigidity and minimal deflection
- Robotic Systems: Articulated arms and precision positioning mechanisms
- Aerospace Components: Flight control systems and auxiliary power units
- Medical Equipment: High-speed dental handpieces and surgical tools
- Test & Measurement Instruments: Coordinate measuring machines and optical inspection equipment
