71903 CD/P4A Super Precision High Capacity Angular Contact Ball Bearing 17x30x7 mm
Price:
Please contact us,thanks
MOQ:
1000
Delivery Time:
30 days
Brand:
CNBTZC or OEM
Product Description
71903 CD/P4A Super Precision Single Row Angular Contact Ball Bearing 7903
71903 CD/P4A 17×30×7 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing - High Speed
Super-precision, high-capacity, single row angular contact ball bearing. The 71903 CD/P4A 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 CD/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 | 15° (25°, 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, Oil |
| Tolerance Class | P4A better than P4 (ABEC-7) |
| Weight | 0.017 kg |
| Dynamic Radial Load | 4160 N |
| Static Radial Load | 2080 N |
| Reference Speed For Grease | 53,000 rpm |
| Limiting Speed For Oil | 80,000 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 CD/P4A bearing is distinguished by its high speed and precision, making it ideal for applications requiring high rotational accuracy and stability. It is extensively used in:
- High-speed machine tools like electric spindles, machining centers, and milling machines
- Metal cutting processes, mixers, and guide rail stud welders
- Heat exchangers, bending machines, and oilfield equipment
- Chemical processing facilities
This bearing offers excellent performance under demanding conditions, corrosion resistance, and wear resistance, significantly enhancing operational efficiency and quality across various industrial sectors.
Certifications & Services
| Certificates | RoHS & REACH, IATF16949:2016 |
| Features | High Speed and Stiffness, High Running Accuracy, High Load Carrying Capacity |
| Services | OEM & ODM Customized Services, Online Support, Professional Service |
| Samples | Please Contact Us |
| Size Availability | Standard sizes available, custom sizes upon request |
| Manufacturer | Factory Manufacturer |
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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