7014 CD/P4AQBCA
7000 Series Super Precision Angular Contact Ball Bearings
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7014 CD/P4AQBCA Bearing Product Overview & Core Advantages
The 7014 CD/P4AQBCA is a precision quadruplex back-to-back angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This matched set configuration provides superior stiffness and moment load capacity, making it ideal for high-precision spindles. Its P4A tolerance class ensures extremely tight dimensional and running accuracy, while the extra light preload (Class A) minimizes deflection under operational loads, contributing to outstanding rotational precision and high-speed performance.
7014 CD/P4AQBCA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7014 | Standard bearing series designation, indicating bore diameter of 70 mm and specific cross-section. |
| CD | Indicates a specific internal design and contact angle optimized for high-precision applications. |
| P4A | Denotes a high-precision tolerance class with running accuracy requirements tighter than ABEC 7 (P4), ensuring minimal vibration and smooth operation. |
| QBC | Signifies the matched arrangement as Quadruplex Back-to-Back. This configuration of four bearings provides maximum rigidity against moment loads. |
7014 CD/P4AQBCA Bearing Structural Features & Performance Benefits
High Rigidity & Moment Load Capacity: The quadruplex back-to-back arrangement creates a highly rigid bearing system that effectively resists moment and complex combined loads, making it suitable for applications where shaft deflection must be minimized.
Precision Performance: Manufactured to P4A tolerance class with extremely tight dimensional tolerances on the bore, outside diameter, and width. This guarantees precise fitment and superior running accuracy for critical spindle applications.
Optimized for High Speeds: The phenolic cage offers low weight and excellent performance at high rotational speeds, contributing to the bearing's limiting speed of 22,000 rpm. The 15° contact angle provides a balanced capability for handling radial and axial loads at high speeds.
Robust Load Capacity: With a dynamic load rating of 30,375 lbf and a static load rating of 41,175 lbf, this bearing set is engineered for long service life under significant operational stresses.
7014 CD/P4AQBCA Bearing Typical Application Areas
This bearing is specifically engineered for high-performance machinery requiring the ultimate in precision and rigidity. Its primary applications include:
- High-Speed Machine Tool Spindles (e.g., CNC milling, grinding, and jig boring machines)
- Precision Grinding Spindles
- High-frequency motor spindles
- Other precision rotary equipment where extreme stiffness and running accuracy are critical.
