7215 CD/P4AQBCC
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7215 CD/P4AQBCC Bearing Product Overview & Core Advantages
The 7215 CD/P4AQBCC is a precision quadruplex angular contact ball bearing designed for applications requiring exceptional rigidity and accuracy. This matched set arrangement features four bearings in a back-to-back configuration (QBC) with moderate preload (Class C), enabling superior performance under combined radial and axial loads. Manufactured to P4A tolerance class with a 15° contact angle, it delivers high rotational accuracy and stability for demanding industrial applications.
7215 CD/P4AQBCC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7215 | Basic bearing designation (75mm bore, 130mm OD) |
| CD | 15° contact angle design |
| P4A | High precision tolerance class |
| QBCC | Quadruplex back-to-back arrangement with moderate preload |
7215 CD/P4AQBCC Bearing Structural Features & Performance Benefits
Enhanced Rigidity: The quadruplex back-to-back configuration provides exceptional system stiffness, minimizing deflection under heavy combined loads and ensuring precise positioning.
Superior Load Capacity: With a radial dynamic load rating of 42,750 lbf and static load rating of 56,250 lbf, this bearing set handles significant radial and axial forces simultaneously while maintaining performance.
Precision Performance: The P4A tolerance class ensures minimal runout and vibration, while the phenolic cage contributes to smooth operation at the limiting speed of 22,000 rpm.
Optimized Design: Featuring 17 chrome steel balls with 15.875mm diameter and 15° contact angle, this configuration provides optimal load distribution and rotational accuracy.
7215 CD/P4AQBCC Bearing Typical Application Areas
- Machine tool spindles requiring high precision and rigidity
- High-speed machining centers and precision grinding equipment
- Industrial pumps and compressors with demanding load requirements
- Robotic positioning systems and automation equipment
- Aerospace positioning mechanisms and precision instrumentation
- Medical equipment spindles requiring high accuracy and reliability
