S71915 ACD/P4ATGD
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
S71915 ACD/P4ATGD Bearing Product Overview & Core Advantages
The S71915 ACD/P4ATGD is a precision double-row angular contact ball bearing engineered for high rigidity and exceptional performance in demanding applications. This P4A tolerance class bearing is designed to handle combined radial and axial loads simultaneously from both directions, making it ideal for high-precision, high-reliability machinery. Its sealed design and preloaded configuration (Class D) ensure consistent accuracy and minimal deflection under heavy operating conditions, providing superior rotational stability.
S71915 ACD/P4ATGD Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Contact angle of 25° and heavy preload (Class D) |
| P4A | High precision tolerance class (superior to ABEC 7) |
| TGD | Sealed on both sides and pre-lubricated with grease |
S71915 ACD/P4ATGD Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double-row design and heavy preload provide exceptional stiffness, minimizing shaft deflection under heavy combined loads. With a radial dynamic load rating of 16,380 lbf and static load rating of 23,850 lbf, it delivers reliable performance in strenuous conditions.
- Precision & Speed Performance: Manufactured to P4A tolerance class with a phenolic cage, this bearing ensures smooth operation and contributes to a high limiting speed of 28,000 rpm, suitable for high-speed applications.
- Maintenance-Free Operation: The integral seals and factory-applied grease lubrication protect against contamination and provide long-term, maintenance-free service within a temperature range of -30°C to 110°C.
- Universal Matchability (SU): Designed as a universal matchable bearing, it can be paired in sets (typically 3 bearings) to achieve specific preload and stiffness requirements without selective mounting.
S71915 ACD/P4ATGD Bearing Typical Application Areas
This high-precision, heavy preload bearing is ideally suited for applications requiring high rigidity and accurate rotational guidance, including:
- Machine tool spindles (high-speed milling and grinding)
- Precision industrial pumps and compressors
- Robotic arm joints and precision gearboxes
- Medical equipment and aerospace instrumentation
