71903 CE/P4A Super Precision High Speed Single Row Angular Contact Ball Bearing with P4A Precision Grade
Price:
Please contact us,thanks
MOQ:
1000
Delivery Time:
30 days
Brand:
CNBTZC or OEM
Product Description
71903 CE/P4A Super Precision Single Row Angular Contact Ball Bearing 7903
Product Overview
71903 CE/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 featuring precise dimensions, high static load capacity, P4A precision grade, delivering superior performance and reliability for applications requiring high rotational accuracy and stability.
Technical Specifications
| Part Number | 71903 CE/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 or Oil |
| Tolerance Class | P4A better than P4 (ABEC-7) |
| Weight | 0.015 kg |
| Dynamic Radial Load | 3380 N |
| Static Radial Load | 1530 N |
| Reference Speed For Grease | 70,000 rpm |
| Limiting Speed For Oil | 106,000 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 wide temperature range
Applications
The 71903 CE/P4A bearing is distinguished by its high precision, durability, and ability to perform under demanding conditions, making it essential in various industries:
- Metallurgy for rolling mills
- Power generation for generators and transformers
- Steel production to enhance efficiency and reduce maintenance
- Machine tools for ensuring machining accuracy
- Mining and construction machinery for high-load and harsh environments
- Road construction and railway equipment for reliability and safety
Certification & 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
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
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