71906 ACB/HCP4A Super Precision P4A Grade Angular Contact Ball Bearing with Hybrid Ceramic Balls for High Speed 67,000 rpm
71906ACB/HCP4A 30×47×9 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing Hybrid Ceramic Balls High Speed
Super-precision, high-speed B design, single row angular contact ball bearing.
The 71906 ACB/HCP4A bearing features a bore diameter of 30 mm, outside diameter of 47 mm, and width of 9 mm. With precise dimensions, high static load capacity, P4A precision grade, and hybrid ceramic balls, it delivers superior performance and reliability for applications requiring high rotational accuracy and stability.
| Part Number | 71906 ACB/HCP4A |
| Bearing Type | Angular Contact |
| Measurement Unit | Metric |
| Dimensions |
Inner Bore Diameter (d): 30 mm Inner Bore Diameter Tolerance: -0.005mm to 0 Outer Bore Diameter (D): 47 mm Outer Bore Diameter Tolerance: -0.006mm to 0 Width (B): 9 mm Width Tolerance: -0.2mm to 0 |
| Specifications |
Contact Angle: 25° (15°, 40° Available) Material: Hybrid (Chrome Steel Rings, Ceramic Balls) Cage Material: Phenolic Number of Rows: 1 Single Row Seal Type: Open Temperature Range: -30°C to 150°C Lubrication: Grease or Oil Tolerance Class: P4A better than P4 (ABEC-7) Weight: 0.044 kg Matched Arrangement: No Universal Matching Bearing: No Preload: Not applicable |
| Load and Speed |
Dynamic Radial Load: 4620 N Static Radial Load: 3000 N Reference Speed For Grease: 43,000 rpm Limiting Speed For Oil: 67,000 rpm |
- Engineered for high-precision and high-performance applications
- Very tight tolerances suitable for precise machinery
- Ability to handle both radial and axial loads simultaneously
- High-speed operation with stability
- Low torque and friction for energy efficiency
- Enhanced rigidity for accuracy under heavy loads
- Durability with extended service life
- Effective performance across a wide temperature range
The 71906 ACB/HCP4A bearing is a high-precision angular contact ball bearing designed for demanding applications, featuring P4A grade precision and an optimized contact angle (ACB design) for reduced friction and temperature rise. It excels in:
- Precision machine tools and spindle systems
- Industrial automation equipment like coating machines and semiconductor manufacturing devices
- Power transmission systems
- Laboratory instruments
This bearing ensures high rigidity, low vibration, and superior performance in high-speed and high-load environments. Its sealed design (HCP4A suffix) enhances protection against contaminants, making it ideal for maintaining data accuracy and operational reliability across various industries.
Certificates: RoHS & REACH, IATF16949:2016
Features: High Speed and Stiffness, High Running Accuracy, High Load Carrying Capacity
Services: OEM&ODM Customized Services, Online Support, Professional Service
Samples: Please Contact Us
Size: Standard (For custom sizes, please contact us)
Factory Manufacturer: Yes
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