7206 CD/P4ATBTA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7206 CD/P4ATBTA Bearing Product Overview & Core Advantages
The 7206 CD/P4ATBTA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This triplex matched set features three bearings arranged in a Back-to-Back (TBT) configuration with an Extra light (Class A) preload, delivering superior system stiffness and precise shaft positioning. Its P4A tolerance class ensures extremely tight dimensional and running accuracy, making it ideal for high-speed spindles and other high-precision machinery.
7206 CD/P4ATBTA Bearing Model Code Explained, Specifications & Naming Convention
- 7206: Basic series designation (30mm bore, 62mm OD).
- C: 15° nominal contact angle.
- D: Identifies a specific internal design for high precision.
- P4A: Super-precision tolerance class (exceeding ABEC 7).
- TBT: Triplex Back-to-Back matched arrangement.
- A: Extra light preload (Class A).
7206 CD/P4ATBTA Bearing Structural Features & Performance Benefits
High Rigidity & System Stability: The triplex back-to-back arrangement creates a highly rigid bearing system that effectively resists moment loads and maintains precise shaft alignment under complex loading conditions.
Superior Precision & Running Accuracy: Manufactured to P4A super-precision standards with optimized raceway geometry and a phenolic cage, this bearing delivers minimal runout and vibration for exceptional rotational performance.
Optimized for High-Speed Operation: The combination of a 15° contact angle, lightweight phenolic cage, and precision-ground components enables high-speed capability up to 71,500 rpm.
Enhanced Load Capacity: The matched set configuration significantly increases radial dynamic load capacity (11,858 lbf) and radial static load capacity (10,688 lbf) compared to single bearings, providing reliable performance under combined loading.
7206 CD/P4ATBTA Bearing Typical Application Areas
This precision bearing set is specifically engineered for applications requiring the highest levels of accuracy and rigidity:
- Machine Tool Spindles (high-speed milling, grinding, and turning centers)
- Precision Spindles for PCB drilling and semiconductor manufacturing equipment
- High-Speed Motors and servo drives
- Aerospace Positioning Systems and navigation instruments
- Medical Equipment spindles and precision rotary tables
