71915 CD/P4AQBCC
71900 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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71915 CD/P4AQBCC Bearing Product Overview & Core Advantages
The 71915 CD/P4AQBCC is a precision quadruplex matched set of angular contact ball bearings designed for the most demanding applications. This metric bearing configuration provides exceptional system rigidity and load-carrying capacity. Its primary advantage lies in its ability to handle combined loads (radial and axial) simultaneously with high precision, making it ideal for machine tool spindles and other high-performance rotational systems requiring maximum stiffness and accuracy.
71915 CD/P4AQBCC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71915 | Basic bearing series and size designation |
| CD | Contact angle of 15° |
| P4A | High precision tolerance class (equivalent to ABEC 7) |
| QBCC | Quadruplex Back-to-Back matched arrangement with moderate preload (Class C) |
71915 CD/P4AQBCC Bearing Structural Features & Performance Benefits
Optimized Matched Set Configuration: The quadruplex back-to-back arrangement creates an exceptionally rigid bearing system capable of resisting complex moment loads and shaft deflection.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control on all bearing dimensions (bore, OD, width) for consistent high-performance operation.
Enhanced Load Capacity: The 15° contact angle and quadruplex design provide superior combined load handling with a radial dynamic load rating of 21,510 lbf and static rating of 33,750 lbf.
High-Speed Capability: The phenolic cage material and optimized internal geometry enable operation at limiting speeds up to 36,000 rpm.
Premium Material Construction: Manufactured from chrome steel for both rings and balls, ensuring durability and long service life in demanding conditions.
71915 CD/P4AQBCC Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and milling applications requiring maximum rigidity
- High-Speed Precision Equipment: Precision rotary tables, indexing heads, and measuring instruments
- Industrial Robotics: Robot arm joints and precision positioning systems
- Aerospace Components: Gyroscopes, navigation systems, and aircraft control surface actuators
- Medical Equipment: High-speed dental handpieces and precision medical imaging devices
