71906 CE/HCPA9ADGA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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71906 CE/HCPA9ADGA Bearing Product Overview & Core Advantages
The 71906 CE/HCPA9ADGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and reliability. This universal matchable bearing features a 15° contact angle and is supplied as a pre-lubricated, pre-set pair (SU arrangement), enabling it to accommodate combined radial and axial loads simultaneously. Its construction with a phenolic cage and ceramic balls positions it as an ideal solution for high-speed operation and applications where minimal heat generation and electrical insulation are beneficial.
71906 CE/HCPA9ADGA Bearing Model Code Explained, Specifications & Naming Convention
- 71906: Basic designation indicating a light series, 30mm bore angular contact bearing
- C: 15° nominal contact angle
- E: Optimized internal design for high-speed performance
- HCPA9A: High-Precision Tolerance Class PA9A with specific running accuracy requirements
- DGA: Universal matchable bearing designation (can be mounted in any combination)
71906 CE/HCPA9ADGA Bearing Structural Features & Performance Benefits
High-Speed Capability: The combination of a phenolic resin cage and ceramic balls significantly reduces centrifugal forces and friction, enabling operation at limiting speeds up to 100,500 rpm. This construction also provides excellent dimensional stability under thermal variations.
Exceptional Rigidity & Precision: Manufactured to PA9A tolerance class with extremely tight dimensional tolerances (bore/OD: -0.004mm to 0), this bearing delivers superior running accuracy and minimal vibration for precision applications.
Optimized Load Capacity: The 15° contact angle and universal matching design allow the bearing pair to effectively handle combined radial and axial loads from both directions, with a dynamic load rating of 2077 lbf and static load rating of 1440 lbf.
Pre-lubricated & Ready for Use: Factory-lubricated for immediate installation and operation within a temperature range of -30°C to 110°C, reducing maintenance requirements.
71906 CE/HCPA9ADGA Bearing Typical Application Areas
The 71906 CE/HCPA9ADGA excels in high-precision, high-speed applications including:
- Machine Tool Spindles: For CNC machining centers, grinding spindles, and precision lathes
- High-Speed Motors & Spindles: In semiconductor manufacturing equipment and PCB drilling machines
- Precision Instrumentation: Medical devices, optical instruments, and measuring equipment
- Aerospace Components: Gyroscopes, navigation systems, and auxiliary power units
- Robotics & Automation: High-precision robotic joints and servo motor applications
