71914 CD/P4AQBCA
71900 Series Super Precision Angular Contact Ball Bearings
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71914 CD/P4AQBCA Bearing Product Overview & Core Advantages
The 71914 CD/P4AQBCA is a precision angular contact ball bearing configured in a quadruplex back-to-back (QBC) matched arrangement. This premium-grade bearing is engineered for applications demanding exceptional rotational accuracy, high system rigidity, and the capacity to handle complex combined loads. Its P4A tolerance class ensures superior running accuracy, making it an ideal solution for high-performance spindles and precision machinery.
71914 CD/P4AQBCA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71914 | Bearing series and size designation |
| C | 15° contact angle |
| D | Enhanced internal design for higher capacity |
| P4A | High-precision tolerance class (exceeding ABEC 7) |
| QBC | Quadruplex Back-to-Back matched set of 4 bearings |
71914 CD/P4AQBCA Bearing Structural Features & Performance Benefits
Exceptional Rigidity and Load Capacity: The quadruplex back-to-back arrangement creates a highly rigid bearing system capable of supporting significant combined radial and axial loads from both directions. This configuration provides optimal preload distribution for maximum stiffness.
Precision Engineering: Manufactured to P4A tolerance class with a 15° contact angle, this bearing delivers superior running accuracy and minimal vibration. The phenolic cage ensures smooth operation at high speeds while reducing friction and heat generation.
Optimized for High-Speed Applications: With a limiting speed of 24,000 rpm and precision-ground chrome steel components, this bearing maintains stability and accuracy under demanding rotational conditions. The open design allows for efficient lubrication management in sophisticated spindle systems.
71914 CD/P4AQBCA Bearing Typical Application Areas
This high-precision bearing set is specifically designed for demanding applications including:
- Machine Tool Spindles - High-speed milling, grinding, and turning centers
- Precision Robotics - High-accuracy robotic arms and positioning systems
- Aerospace Components - Flight control systems and auxiliary power units
- Medical Equipment - High-speed dental handpieces and surgical tools
- Test and Measurement Equipment - Coordinate measuring machines and precision instrumentation
