71906 CD/P4ATBTC
71900 Series Super Precision Angular Contact Ball Bearings
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71906 CD/P4ATBTC Bearing Product Overview & Core Advantages
The 71906 CD/P4ATBTC is a precision angular contact ball bearing designed for applications demanding exceptional rigidity and rotational accuracy. This triplex back-to-back (TBT) matched set delivers superior performance in handling combined loads, including significant radial and axial loads in both directions. Manufactured to P4A tolerance class, it ensures extremely tight dimensional control for high-precision machinery. The phenolic cage and optimized 15° contact angle contribute to its excellent high-speed capabilities, making it an ideal choice for demanding industrial applications.
71906 CD/P4ATBTC Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Indicates a 15° contact angle and specific internal design optimized for high rigidity |
| P4A | Denotes ultra-precision tolerance class with enhanced running accuracy |
| TBT | Signifies Triplex Back-to-Back arrangement of three matched bearings |
| Moderate / Class C Preload | Provides optimal bearing stiffness while maintaining smooth operation |
71906 CD/P4ATBTC Bearing Structural Features & Performance Benefits
Enhanced Rigidity: The triplex back-to-back configuration creates an exceptionally rigid bearing system, minimizing deflection under heavy combined loads and ensuring precise shaft positioning.
Superior Load Capacity: With a radial dynamic load rating of 3442 lbf and static load rating of 3082 lbf, this bearing set reliably handles significant radial and bidirectional axial loads simultaneously.
High-Speed Performance: The phenolic cage material and optimized internal geometry enable operation at limiting speeds up to 100,500 rpm, making it suitable for high-rotation applications.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls (bore diameter tolerance: -0.004mm to 0), this bearing ensures minimal runout and vibration for precision applications.
71906 CD/P4ATBTC Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers and grinding spindles
- High-Speed Robotic Arms - Precision joints requiring high rigidity and accuracy
- Aerospace Components - Guidance systems and control mechanisms
- Medical Equipment - High-speed dental handpieces and surgical tools
- Precision Instrumentation - Measuring devices and optical equipment requiring minimal deflection
