71907 ACB/HCP4A Super Precision High Speed Angular Contact Ball Bearing with Hybrid Ceramic Balls
71907 ACB/HCP4A 35×55×10 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 71907 ACB/HCP4A bearing, with bore diameter of 35 mm, outside diameter of 55 mm, and width of 10 mm, features 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 | 71907 ACB/HCP4A |
| 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 | 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 | 0.074 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 (r/min) | 36,000 rpm |
| Limiting Speed For Oil (r/min) | 56,000 rpm |
- 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/HCP4A precision angular contact ball bearing is designed for industrial applications requiring high-speed operation, high rigidity, and precise performance. It is extensively used in:
- Precision machine tool spindles
- High-speed power equipment such as wind turbines and automotive engines
- Industrial transmission systems including construction machinery and elevator traction motors
- Precision instruments and automation equipment
This bearing ensures high accuracy, stability, and longevity in these applications, excelling in both heavy load support and fine control requirements.
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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