71906 CD/P4ATBTA
71900 Series Super Precision Angular Contact Ball Bearings
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71906 CD/P4ATBTA Bearing Product Overview & Core Advantages
The 71906 CD/P4ATBTA is a metric precision angular contact ball bearing designed for high-performance applications requiring exceptional rotational accuracy and rigidity. This bearing features a triplex back-to-back (TBT) matched arrangement, providing superior stability and the ability to handle combined loads (radial and axial) simultaneously. Manufactured to P4A tolerance class with an extra light preload (Class A), it delivers high running accuracy and is optimized for high-speed operation up to 100,500 rpm. Its compact design and phenolic cage contribute to its excellent performance in demanding, precision-critical environments.
71906 CD/P4ATBTA Bearing Model Code Explained, Specifications & Naming Convention
- 71906: Basic bearing series and size designation (30mm bore, 47mm OD).
- CD: Indicates a 15° contact angle and specific internal design optimized for high-speed operation.
- P4A: Denotes a super-precision tolerance class, ensuring extremely tight dimensional and running accuracy.
- TB: Signifies the bearing is part of a triplex back-to-back (TBT) matched set.
- TA: Indicates an extra light preload (Class A) applied to the bearing set.
71906 CD/P4ATBTA Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The triplex back-to-back (TBT) arrangement of three bearings creates an exceptionally rigid and stable bearing system, ideal for applications where shaft deflection must be minimized.
- Superior Load Capacity: The angular contact design and matched set configuration enable the bearing to support significant combined radial and axial loads.
- High-Speed Performance: The phenolic cage and optimized internal geometry, combined with the 15° contact angle, allow for a very high limiting speed of 100,500 rpm.
- Precision Engineering: Manufactured to P4A tolerance class with a precise extra light preload, this bearing ensures low noise, minimal vibration, and high rotational accuracy.
- Durable Construction: Components made from chrome steel provide high wear resistance and long service life under demanding conditions.
71906 CD/P4ATBTA Bearing Typical Application Areas
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Aerospace Control Systems
- Medical and Dental Handpieces
- Test and Measurement Equipment
