71903 FE/HCP4AH Super Precision Angular Contact Ball Bearing with 17 mm Bore Diameter P4A Precision Grade and Hybrid Ceramic Balls
71903 FE/HCP4AH 17×30×7 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing Hybrid Ceramic Balls High Speed
Super-precision, high-speed E design, single row angular contact ball bearing suitable for direct oil-air lubrication.
The 71903 FE/HCP4AH bearing features a bore diameter of 17 mm, outside diameter of 30 mm, and width of 7 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 | 71903 FE/HCP4AH |
|---|---|
| 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 | -0.004mm to 0 |
| Width (B) | 7 mm |
| Width Tolerance | -0.2mm to 0 |
| Specifications | |
| Contact Angle | 15° (15° 25°,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 | 0.014 kg |
| Matched Arrangement | No |
| Universal Matching Bearing | No |
| Preload | Not applicable |
| Load and Speed | |
| Dynamic Radial Load | 3320 N |
| Static Radial Load | 1500 N |
| Reference Speed For Grease (r/min) | 79,000 rpm |
| Limiting Speed For Oil (r/min) | 121,000 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 wide temperature range
The 71903 FE/HCP4AH bearing is distinguished by its high precision, excellent load capacity, and superior corrosion resistance, making it essential in a wide range of industries including:
- High-purity water production
- Power transmission in triple-ring reducers
- Extreme conditions in reflow soldering machines
- Efficient air purification systems
- Robust performance in painting and dust removal equipment
- Reliable operation in pneumatic pumps
- Stability under high temperatures and pressures in heat exchangers
- Durability in leather processing
- Continuous accuracy in inkjet printers
- Precision in painting production lines
- Stable performance in agricultural tractors
- Resistance to corrosive media in chemical pumps
Certificates: RoHS & REACH, IATF16949:2016
Features: High Speed and Stiffness, High Running Accuracy, High Load Carrying Capacity
Service: OEM&ODM Customized Services
Samples: Please Contact Us
Service Support: Online Support, Professional Service
Size Availability: Standard sizes available. For custom sizes, please contact us.
Factory Manufacturer: Yes
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