S7014 ACD/P4AQBCD
Sealed Super Precision Angular Contact Ball Bearings
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S7014 ACD/P4AQBCD Bearing Product Overview & Core Advantages
The S7014 ACD/P4AQBCD is a high-precision quadruplex angular contact ball bearing designed for demanding applications requiring exceptional rigidity and load capacity. This matched set of four bearings in a back-to-back arrangement (QBC) provides superior stability and can accommodate combined radial and axial loads simultaneously. Manufactured to P4A tolerance class with a heavy preload (Class D), it delivers high running accuracy and is ideal for high-speed, high-rigidity spindles in precision machinery.
S7014 ACD/P4AQBCD Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7014 | Bearing series and size designation (70mm Bore, 110mm OD, 80mm Width) |
| ACD | Angular Contact Design with a 25° contact angle |
| P4A | High-Precision Tolerance Class (exceeding ABEC 7) |
| QBC | Quadruplex Back-to-Back matched set arrangement |
| D | Heavy Preload classification for maximum rigidity |
S7014 ACD/P4AQBCD Bearing Structural Features & Performance Benefits
Exceptional Rigidity and Load Capacity: The quadruplex back-to-back configuration creates a highly rigid bearing system that effectively resists moment loads. With a radial dynamic load rating of 28,575 lbf and a static load rating of 38,925 lbf, this bearing set is engineered for heavy-duty applications.
Optimized High-Speed Performance: The phenolic cage and 25° contact angle are optimized for high-speed operation, enabling a limiting speed of 22,000 rpm. The precision-ground chrome steel components ensure smooth operation and minimal vibration.
Pre-Configured for Precision: As a factory-matched set of 4 bearings with heavy preload, this assembly guarantees consistent performance and eliminates the need for complex on-site adjustment, ensuring optimal running accuracy from installation.
S7014 ACD/P4AQBCD Bearing Typical Application Areas
This high-precision bearing set is specifically designed for applications where extreme rigidity, high speed, and precision are critical. Typical applications include:
- Machine Tool Spindles (CNC machining centers, grinding spindles)
- High-Speed Precision Spindles for PCB drilling and routing
- Industrial Robotics (high-precision rotary joints and arm linkages)
- Aerospace Test Equipment and precision positioning systems
