71906 CE/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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71906 CE/HCP4ADBA Bearing Product Overview & Core Advantages
The 71906 CE/HCP4ADBA is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This duplex back-to-back (DB) matched set delivers superior high rigidity and can accommodate combined radial and axial loads. Manufactured to P4A tolerance class and featuring a ceramic ball and phenolic cage construction, it is engineered for high-speed operation and extended service life in precision machinery.
71906 CE/HCP4ADBA Bearing Model Code Explained, Specifications & Naming Convention
- 71906: Basic bearing designation (30mm bore, 47mm OD, 18mm width)
- C: 15° contact angle
- E: Optimized internal design
- HC: Hybrid Ceramic (steel rings with ceramic balls)
- P4A: High precision tolerance class
- A: Extra light preload
- DB: Duplex Back-to-Back arrangement
71906 CE/HCP4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back configuration creates a rigid bearing system that effectively resists moment loads and provides stable bearing dimensions under combined loads.
High-Speed Performance: The combination of ceramic balls (reducing centrifugal forces) and phenolic cage enables exceptional limiting speeds up to 100,500 rpm, making it ideal for high-speed spindle applications.
Precision Operation: Manufactured to P4A tolerance class with tight bore diameter tolerance and outside diameter tolerance, ensuring minimal runout and vibration for superior rotational accuracy.
Extended Service Life: The hybrid ceramic construction provides excellent wear resistance and can operate effectively within a temperature range of -30°C to 110°C.
71906 CE/HCP4ADBA Bearing Typical Application Areas
This precision bearing is specifically designed for high-performance applications including:
- Machine tool spindles and high-speed machining centers
- Precision grinding spindles
- High-frequency motor spindles
- Medical and dental equipment spindles
- Aerospace instrumentation and rotating systems
- Any application requiring high rigidity, high-speed capability, and exceptional precision
