S71903 CD/HCP4A Super Precision Angular Contact Ball Bearing with 17 mm Bore Diameter P4A Precision Grade and Hybrid Ceramic Balls
S71903 CD/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 with seals. Featuring precise dimensions, high static load capacity, P4A precision grade, and hybrid ceramic balls, this bearing delivers superior performance and reliability for applications requiring high rotational accuracy and stability.
| Part Number | S71903 CD/HCP4A |
|---|---|
| Bearing Type | Angular Contact |
| Measurement Unit | Metric |
| 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 |
| Contact Angle | 15° (25°,40° Available) |
| Material | Hybrid (Chrome Steel Rings, Ceramic Balls) |
| Cage Material | Phenolic |
| Number of Rows | 1 Single Row |
| Seal Type | Seal on both sides |
| Temperature Range | -30°C to 150°C |
| Lubrication | Grease |
| Tolerance Class | P4A better than P4 (ABEC-7) |
| Weight | 0.015 kg |
| Dynamic Radial Load | 4160 N |
| Static Radial Load | 2080 N |
| Reference Speed For Grease | 63,000 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 S71903 CD/HCP4A bearing is an ultra-precision angular contact ball bearing designed for high-speed and high-load applications, featuring high rigidity and low friction. It is ideal for a wide range of machinery including:
- Electric spindles
- High-speed machining centers
- Milling machines, lathes, and grinding machines
- Woodworking equipment
- Metal cutting tools
- Ship gyro stabilizers
- Telescopes
- Gas turbine engines
- Race car wheel hubs
By ensuring stability, reliability, and precision in these demanding environments, this bearing significantly enhances operational efficiency and quality, making it essential for improving performance across various industrial sectors.
RoHS & REACH, IATF16949:2016
High Speed and Stiffness, High Running Accuracy, High Load Carrying Capacity
OEM&ODM Customized Services, Online Support, Professional Service
Standard sizes available, custom sizes upon request
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