71903 ACD/HCP4A Super Precision Angular Contact Ball Bearing with 17 mm Bore Diameter P4A Precision Grade and Hybrid Ceramic Balls
71903 ACD/HCP4A 17×30×7 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing Hybrid Ceramic Balls High Speed
Super-precision, high-capacity, single row angular contact ball bearing. The 71903 ACD/HCP4A bearing features precise dimensions, high static load capacity, P4A precision grade, and hybrid ceramic balls, delivering superior performance and reliability for applications requiring high rotational accuracy and stability.
| Part Number | 71903 ACD/HCP4A |
| Bearing Type | Angular Contact |
| Measurement Unit | Metric |
| Dimensions |
Inner Bore Diameter (d): 17 mm Inner Bore Diameter Tolerance: -0.004mm to 0 Outer Bore Diameter (D): 30 mm Outer Bore Diameter Tolerance: -0.005mm to 0 Width (B): 7 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: 0.015 kg Matched Arrangement: No Universal Matching Bearing: No Preload: Not applicable |
| Load and Speed |
Dynamic Radial Load: 3970 N Static Radial Load: 2000 N Reference Speed For Grease: 56,000 rpm Limiting Speed For Oil: 90,000 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 71903 ACD/HCP4A bearing, distinguished by its high precision and reliability, is extensively used across a broad range of industries including:
- Household appliances
- Fuel injection pumps
- Industrial and domestic pumps
- Gear reduction units
- Vibrating screens
- Crane systems and tower cranes
- Audio equipment
- Heavy-duty compaction machinery
Its ability to ensure stable and efficient operation under diverse conditions makes it essential for enhancing performance and durability in applications ranging from ensuring the clarity of sound transmission to supporting heavy loads in construction and maintaining the efficiency of fuel systems.
| 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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