71903 ACE/P4A Super Precision Angular Contact Ball Bearing with High Speed E Design and P4A Precision Grade 17x30x7 mm
Price:
Please contact us,thanks
MOQ:
1000
Delivery Time:
30 days
Brand:
CNBTZC or OEM
Product Description
71903 ACE/P4A Super Precision Single Row Angular Contact Ball Bearing 7903
71903 ACE/P4A 17×30×7 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing - High Speed
Super-precision, high-speed E design, single row angular contact ball bearing
The 71903 ACE/HCP4A 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, and P4A precision grade, it delivers superior performance and reliability for applications requiring high rotational accuracy and stability.
Technical Specifications
| Part Number | 71903 ACE/P4A |
| 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 | 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 | 0.016 kg |
| Matched Arrangement | No |
| Universal Matching Bearing | No |
| Preload | Not applicable |
| Dynamic Radial Load | 3190 N |
| Static Radial Load | 1460 N |
| Reference Speed For Grease (r/min) | 63,000 rpm |
| Limiting Speed For Oil (r/min) | 95,000 rpm |
Performance Features
- 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
Applications
The 71903 ACE/P4A bearing, distinguished by its high precision and reliability, is crucial in a variety of industries including:
- Steel and aluminum production
- Chemical processing
- Cement and paper manufacturing
- Wind energy
It ensures smooth and efficient operations in critical transmission systems and equipment, such as conveyor belts, rolling mills, mixing machinery, and wind turbine gearboxes, performing reliably under demanding conditions to enhance overall efficiency and stability across these sectors.
Certifications & Services
| 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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Get in Touch
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Company
Beining Intelligent Technology (Zhejiang) Co., Ltd
Location
No.502,Xinxing Third Road,Cixi Intelligent Home Appliance High Tech Industrial Development Zone, Zhejiang,China
Contact Person
Shelley Dong