71914 CDGB/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71914 CDGB/P4A Bearing Product Overview & Core Advantages
The 71914 CDGB/P4A is a single-row angular contact ball bearing engineered for high-precision applications. Designed to accommodate primarily radial loads combined with axial loads in one direction, this bearing features a 15° contact angle and P4A super-precision tolerance for exceptional rotational accuracy and dimensional stability. Its light preload (Class B) ensures minimal deflection under operational stresses, making it ideal for machine tool spindles and other demanding equipment requiring high rigidity and superior running accuracy.
71914 CDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71914 | Basic bearing designation indicating size series and bore diameter (70mm) |
| C | 15° contact angle design |
| DGB | Universal Matchable bearing designed for preloaded duplex arrangements |
| P4A | Super precision tolerance class exceeding ABEC 7 standards |
71914 CDGB/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy and consistent performance in high-speed applications.
Optimized Internal Geometry: The 15° contact angle provides optimal balance between radial and axial load capacity, while the phenolic cage offers excellent dimensional stability and reduced friction at high speeds.
High-Speed Capability: With a limiting speed of 24,000 rpm and precision-ground chrome steel balls, this bearing delivers reliable performance in demanding high-speed applications.
Universal Matching Design: The DGB universal matching feature allows for flexible mounting configurations (DB, DF, DT) to accommodate various preload requirements and stiffness needs.
71914 CDGB/P4A Bearing Typical Application Areas
- Machine tool spindles requiring high precision and rigidity
- High-speed machining centers and precision grinding machines
- Industrial robotics and automation equipment
- Precision medical equipment and dental handpieces
- Aerospace components and navigation systems
- High-frequency spindles for PCB drilling and milling
