S71913 ACEGB/P4A
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
S71913 ACEGB/P4A Bearing Product Overview & Core Advantages
The S71913 ACEGB/P4A is a single-row angular contact ball bearing designed for applications requiring exceptional precision and high-speed performance. Manufactured to P4A tolerance class, this bearing delivers superior running accuracy and dimensional stability. Its key advantage lies in its ability to accommodate combined loads—handling significant radial loads alongside high unidirectional axial loads—thanks to its 25° contact angle. The phenolic cage and preloaded Light / Class B configuration contribute to smooth operation at high rotational speeds, making it an ideal choice for high-reliability, precision machinery.
S71913 ACEGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Benefit |
|---|---|---|
| AC | 25° Contact Angle | Optimized for high axial load capacity |
| E | Optimized Internal Design | Increased load rating and speed capability |
| GB | Light Preload / Universal Matchable (SU) | Reduced noise/vibration; enables precise matched sets |
| P4A | High Precision Tolerance Class | Exceptional running accuracy for critical applications |
S71913 ACEGB/P4A Bearing Structural Features & Performance Benefits
- High-Speed Capability: The phenolic resin cage ensures low friction and excellent dimensional stability at high rotational speeds, contributing to the impressive limiting speed of 36,000 rpm.
- Superior Rigidity & Load Capacity: The optimized internal geometry with a 25° contact angle provides high rigidity and enables the bearing to handle substantial combined radial and axial loads (Dynamic: 3510 lbf, Static: 2610 lbf).
- Precision Engineering: Manufactured to P4A tolerance class with tight dimensional tolerances on the 65 mm bore and 90 mm outside diameter, ensuring predictable performance and precise shaft positioning.
- Long-Term Reliability: The bearing comes sealed and pre-lubricated with grease, offering protection from contamination and consistent lubrication within its specified temperature range of -30°C to 110°C.
S71913 ACEGB/P4A Bearing Typical Application Areas
The S71913 ACEGB/P4A is engineered for high-performance applications where precision and speed are critical. Its primary uses include:
- Machine Tool Spindles
- High-Frequency Electric Spindles
- Precision Grinding Equipment
- High-Speed Pumps and Compressors
- Robotic Arm Joints and Precision Gearboxes
