S7008 ACD/P4AQBCC
Sealed Super Precision Angular Contact Ball Bearings
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S7008 ACD/P4AQBCC Bearing Product Overview & Core Advantages
The S7008 ACD/P4AQBCC is a high-precision quadruplex matched bearing set designed for demanding applications requiring exceptional rigidity and accuracy. This P4A tolerance class metric angular contact ball bearing is configured in a Quadruplex Back-to-Back (QBC) arrangement with a Moderate (Class C) preload, delivering superior stability and resistance to complex combined loads. Its sealed design and phenolic cage make it ideal for high-speed, high-reliability machinery where minimal maintenance and long service life are critical.
S7008 ACD/P4AQBCC Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Advantage |
|---|---|---|
| ACD | Angular Contact Design, 25° contact angle | Optimized for combined radial and axial loads |
| P4A | High Precision Tolerance Class | Exceptional running accuracy for precision applications |
| QBC | Quadruplex Back-to-Back Configuration | Maximum rigidity and moment load capacity |
| C | Moderate Preload Class | Balanced stiffness and speed capability |
S7008 ACD/P4AQBCC Bearing Structural Features & Performance Benefits
Exceptional Rigidity: The quadruplex back-to-back arrangement creates an extremely rigid bearing system capable of withstanding heavy moment loads and complex combined loads, making it ideal for applications requiring minimal deflection.
High-Speed Capability: Featuring a lightweight phenolic cage and optimized internal geometry, this bearing set achieves a limiting speed of 41,000 rpm, suitable for high-speed spindle applications.
Superior Load Capacity: With a 25° contact angle and precision-ground chrome steel components, the bearing delivers excellent radial dynamic load rating of 9,518 lbf and static load rating of 9,338 lbf.
Maintenance-Free Operation: The sealed design with factory-applied grease lubrication provides long-term protection against contamination and ensures reliable performance throughout the bearing's service life.
S7008 ACD/P4AQBCC Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and CNC milling machines
- High-Speed Motors: Precision electric motors and high-frequency spindles
- Aerospace Components: Gyroscopes, navigation systems, and aircraft instrumentation
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
- Robotics and Automation: Precision robotic arms, rotary tables, and positioning systems
