71906 CD/HCP4ATBTA
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
Ball & Washer Dimensions
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71906 CD/HCP4ATBTA Bearing Product Overview & Core Advantages
The 71906 CD/HCP4ATBTA is a metric precision angular contact ball bearing designed for exceptional performance in demanding applications. This triplex back-to-back (TBT) matched set delivers superior high rigidity and load-carrying capacity. Featuring a P4A tolerance class and ceramic balls, it is engineered for high-speed operation and exceptional rotational accuracy. Its compact design and pre-lubrication make it ideal for high-reliability systems requiring minimal maintenance.
71906 CD/HCP4ATBTA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
| 71906 | Basic bearing designation (30mm bore, 47mm OD) |
| CD | 15° contact angle with optimized internal design |
| HC | Hybrid ceramic balls for enhanced performance |
| P4A | High precision tolerance class |
| TBT | Triplex Back-to-Back matched arrangement |
71906 CD/HCP4ATBTA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The triplex back-to-back configuration provides exceptional stiffness, enabling the bearing to handle significant combined loads including radial, axial, and moment loads simultaneously.
High-Speed Performance: The combination of ceramic balls and phenolic cage reduces centrifugal forces and friction, allowing operation at limiting speeds up to 100,500 rpm.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (bore tolerance: -0.004mm to 0), ensuring precise shaft positioning and minimal runout.
Temperature Stability: The hybrid construction and phenolic cage maintain stable performance across a wide temperature range (-30°C to 110°C).
71906 CD/HCP4ATBTA Bearing Typical Application Areas
- Machine tool spindles requiring high precision and rigidity
- High-speed machining centers and CNC equipment
- Precision grinding spindles and dental equipment
- Aerospace components and navigation systems
- Semiconductor manufacturing equipment
- High-performance robotics and automation systems
