S71910 ACD/P4ADFC
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
S71910 ACD/P4ADFC Bearing Product Overview & Core Advantages
The S71910 ACD/P4ADFC is a super-precision duplex angular contact ball bearing designed for applications demanding exceptional rotational accuracy, high rigidity, and reliable performance under combined loads. This metric bearing features a Face-to-Face (DF) matched arrangement and a P4A tolerance class, making it ideal for high-speed spindles and other precision machinery. Its key advantages include the ability to accommodate combined radial and axial loads from both directions, superior running accuracy, and high operational stability due to its preloaded duplex configuration.
S71910 ACD/P4ADFC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71910 | Basic bearing designation, indicating a super-precision angular contact ball bearing series. |
| ACD | Angular Contact Design with a 25° contact angle for optimal axial load capacity. |
| P4A | Indicates an ultra-high precision tolerance class, exceeding ABEC 7 standards, for minimal runout and vibration. |
| DF | Signifies a Duplex Face-to-Face preloaded arrangement. This configuration provides high rigidity and is tolerant of misalignment. |
| C | Denotes a Moderate preload, balancing rigidity, speed capability, and thermal performance. |
S71910 ACD/P4ADFC Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex face-to-face (DF) arrangement and moderate preload (Class C) create a highly rigid bearing system that effectively resists operational deflection, ensuring precise positioning and smooth operation.
- Superior Load Capacity: With a 25° contact angle and duplex design, this bearing is engineered to handle significant combined radial and bidirectional axial loads simultaneously.
- High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the P4A precision and optimized internal geometry contribute to a high limiting speed of 34,000 rpm.
- Precision & Durability: Manufactured from high-grade chrome steel for rings and balls, and held to P4A tolerance class, this bearing guarantees exceptional running accuracy and long service life in demanding conditions.
- Sealed & Pre-Lubricated: The sealed design with grease lubrication protects against contamination and provides maintenance-free operation within the specified temperature range of -30°C to 110°C.
S71910 ACD/P4ADFC Bearing Typical Application Areas
The S71910 ACD/P4ADFC is specified for high-performance applications where precision, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC milling heads.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Medical & Dental Equipment: High-speed handpieces and scanner rotors.
- Aerospace & Defense Systems: Gyroscopes, radar platforms, and navigation instruments.
- High-Frequency Motors & Spindles: Where low vibration and high rotational accuracy are critical.
