Super Precision High Speed P4A Precision Grade Angular Contact Ball Bearing Single Row Bearing
Price:
Please contact us,thanks
MOQ:
1000
Delivery Time:
2-4 weeks
Brand:
CNBTZC or OEM
Product Description
S71908 ACB/P4A Super Precision Single Row Angular Contact Ball Bearing 7908 2RZ
Product Overview
Super-precision, high-speed B design, single row angular contact ball bearing with seals. The S71908 ACB/P4A bearing features precise dimensions, high static load capacity, P4A precision grade, and delivers superior performance and reliability for applications requiring high rotational accuracy and stability.
Technical Specifications
| Part Number | S71908 ACB/P4A |
| Bearing Type | Angular Contact |
| Measurement Unit | Metric |
| Inner Bore Diameter (d) | 40 mm |
| Inner Bore Diameter Tolerance | -0.006mm to 0 |
| Outer Bore Diameter (D) | 62 mm |
| Outer Bore Diameter Tolerance | -0.007mm to 0 |
| Width (B) | 12 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 | Seal on both sides |
| Temperature Range | -30°C to 150°C |
| Lubrication | Grease |
| Tolerance Class | P4A better than P4 (ABEC-7) |
| Weight | 0.12 kg |
Load and Speed Ratings
| Dynamic Radial Load | 5070 N |
| Static Radial Load | 3900 N |
| Reference Speed For Grease (r/min) | 28,000 rpm |
| Limiting Speed For Oil (r/min) | 43,000 rpm |
Performance Features
- 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 S71908 ACB/P4A high-precision angular contact ball bearing is designed for high-speed and high-rigidity applications, ideal for:
- Machine tool spindles where it ensures accuracy and stability at high speeds
- Industrial automation equipment requiring precise positioning and low friction
- Precision instruments needing reliable performance under medium to high-speed rotations
Certifications & Services
| 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 |
| Support | Online Support, Professional Service |
| Size Options | Standard, For custom sizes please contact us |
| Manufacturer | Factory Manufacturer |
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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