S71902 ACD/P4ATGB
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S71902 ACD/P4ATGB Bearing Product Overview & Core Advantages
The S71902 ACD/P4ATGB is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. As a universally matchable (SU) bearing supplied in sets of three, it enables optimized preload configurations for maximum system performance. Its P4A tolerance class ensures superior running accuracy, while the sealed design with phenolic cage and grease lubrication provides reliable operation in high-speed environments up to 95,000 rpm. This bearing excels at handling combined loads (radial and axial) simultaneously, making it ideal for precision spindles and high-rigidity applications.
Model Code Deep Explanation
| Code Segment | Technical Meaning |
|---|---|
| S7 | High-precision angular contact ball bearing series |
| 1902 | Bore diameter: 15 mm, Outside diameter: 28 mm, Width: 21 mm |
| ACD | 25° contact angle, universally matchable design |
| P4A | High precision tolerance class (equivalent to ABEC 7) |
| TGB | Sealed bearing with grease lubrication |
S71902 ACD/P4ATGB Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The 25° contact angle and universal matching capability allow for precise preload adjustment when mounted in sets, delivering exceptional system stiffness and running accuracy required for precision applications.
Superior Load Capacity: Engineered to handle combined radial and axial loads simultaneously, with dynamic load rating of 1843 lbf and static load rating of 1215 lbf, ensuring reliable performance under demanding operating conditions.
Optimized High-Speed Performance: The phenolic cage and optimized internal geometry contribute to reduced friction and vibration, enabling stable operation at limiting speeds of 95,000 rpm.
Maintenance-Free Operation: Integrated seals and factory-applied grease lubrication provide long-term protection against contamination while operating within a temperature range of -30°C to 110°C, ensuring extended service life without additional maintenance.
S71902 ACD/P4ATGB Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles
- High-Speed Motors: Precision electric motors and servo drives
- Medical Equipment: Dental handpieces and surgical tools
- Aerospace Systems: Guidance systems and precision instrumentation
- Robotics: High-accuracy robotic joints and positioning systems
