S7006 CD/P4AQBCB
Sealed Super Precision Angular Contact Ball Bearings
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S7006 CD/P4AQBCB Bearing Product Overview & Core Advantages
The S7006 CD/P4AQBCB is a precision quadruplex back-to-back angular contact ball bearing designed for applications requiring exceptional rigidity and accuracy. This matched set configuration delivers superior performance in handling combined radial and axial loads from multiple directions simultaneously. Manufactured to P4A tolerance class, it ensures high running accuracy and positional stability, making it ideal for high-speed spindles and other precision machinery where uncompromising reliability is critical.
S7006 CD/P4AQBCB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7006 | Basic bearing designation (30mm bore, 55mm OD) |
| CD | Universal matching bearing with specific preload and clearance |
| P4A | High precision tolerance class (superior to ABEC 7) |
| QBC | Quadruplex Back-to-Back arrangement of four bearings |
| B | Light preload classification for optimal stiffness |
S7006 CD/P4AQBCB Bearing Structural Features & Performance Benefits
Exceptional Rigidity: The quadruplex back-to-back configuration creates an extremely rigid bearing system capable of resisting complex moment loads and shaft deflection, ensuring precise rotational accuracy under heavy combined loads.
Superior Load Capacity: With a 15° contact angle and four-bearing arrangement, this set provides outstanding capacity for both radial loads (8482 lbf dynamic) and bidirectional axial loads simultaneously.
High-Speed Capability: The phenolic cage material and optimized internal geometry enable reliable operation at limiting speeds up to 100,500 rpm, making it suitable for demanding high-speed applications.
Precision Performance: Manufactured to P4A tolerance standards with tight dimensional controls (bore/OD tolerance: -0.004mm to 0), this bearing ensures minimal runout and vibration for superior machining quality.
Sealed & Lubricated: The sealed design with factory-applied grease lubrication provides contamination protection and long-term performance within the -30°C to 110°C temperature range.
S7006 CD/P4AQBCB Bearing Typical Application Areas
This high-precision bearing set is specifically engineered for applications requiring maximum rigidity and accuracy:
- Machine Tool Spindles - High-speed milling, grinding, and turning centers
- Precision Spindles - PCB drilling, semiconductor manufacturing equipment
- High-Speed Machining Centers - Where thermal stability and accuracy are critical
- Industrial Robotics - Precision rotary joints and arm linkages
- Aerospace Test Equipment - Precision positioning and measurement systems
