71907 ACB/P4A Super Precision High Speed Angular Contact Ball Bearing with P4A Precision Grade
71907 ACB/P4A 35×55×10 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing
High Speed - Super-precision, high-speed B design, single row angular contact ball bearing
The 71907 ACB/P4A bearing features a bore diameter of 35 mm, outside diameter of 55 mm, and width of 10 mm. With precise dimensions, high static load capacity, and P4A precision grade, it delivers superior performance and reliability for applications requiring high rotational accuracy and stability.
| Part Number | 71907 ACB/P4A |
| Bearing Type | Angular Contact |
| Measurement Unit | Metric |
| Dimensions |
Inner Bore Diameter (d): 35 mm Inner Bore Diameter Tolerance: -0.006mm to 0 Outer Bore Diameter (D): 55 mm Outer Bore Diameter Tolerance: -0.007mm to 0 Width (B): 10 mm Width Tolerance: -0.2mm to 0 |
| Specifications |
Contact Angle: 25° (15°, 40° Available) Material: Chrome Steel 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: 0.078 kg Matched Arrangement: No Universal Matching Bearing: No Preload: Not applicable |
| Load and Speed |
Dynamic Radial Load: 4880 N Static Radial Load: 3450 N Reference Speed For Grease: 30,000 rpm Limiting Speed For Oil: 48,000 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 71907 ACB/P4A is a high-precision angular contact ball bearing featuring P4A precision class, a 25° contact angle, and optimized preload, making it ideal for applications demanding high speed, rigidity, and accuracy.
It excels in:
- Precision machine tools and spindle systems
- High-speed power equipment like wind turbine gearboxes and printing machinery
- Industrial automation and specialized machinery including robotics and semiconductor manufacturing equipment
This bearing ensures superior performance, low vibration, extended maintenance intervals, and long-term reliability in demanding operational environments.
| CERTIFICATE | RoHS & REACH, IATF16949:2016 |
| Feature | High Speed and Stiffness, High Running Accuracy, High Load Carrying Capacity |
| Service | OEM&ODM Customized Services |
| Samples | Please Contact Us |
| Service | Online Support, Professional Service |
| Size | Standard, For custom sizes, please contact us |
| Factory Manufacturer | Yes |
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