S71912 ACE/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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S71912 ACE/P4ADGA Bearing Product Overview & Core Advantages
The S71912 ACE/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. As a universal matchable (SU) bearing, it can be paired with another identical bearing in a back-to-back (DB) or face-to-face (DF) arrangement to optimize performance for specific load conditions. Its key advantages include the ability to handle combined loads (radial and axial) simultaneously, high operational precision due to its P4A tolerance class, and excellent high-speed capabilities supported by its phenolic cage and pre-lubrication. This makes it an ideal, compact solution for high-performance spindles and precision machinery.
S71912 ACE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| S | Designates a bearing with a super-precision tolerance class. |
| 71912 | The basic bearing series and size designation. |
| ACE | Indicates a 25° contact angle and specific internal design optimized for high speed and rigidity. |
| P4A | Specifies a high-precision tolerance class with enhanced running accuracy requirements. |
| DGA | Denotes that the bearing is universal matchable (SU) and comes with a specific preload grade (Extra light / Class A). |
S71912 ACE/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The double row angular contact design provides superior rigidity and enables the bearing to support significant combined radial and axial loads from both directions.
- Optimized High-Speed Performance: The lightweight phenolic cage ensures stability and low friction at high rotational speeds, contributing to a high limiting speed of 32,500 rpm.
- Precision Engineering: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and vibration, which is critical for applications requiring extreme accuracy.
- Universal Matchability (SU): This feature allows for flexible mounting arrangements (DB or DF) without the need for selective matching, simplifying installation and optimizing system performance for specific load conditions.
- Sealed and Pre-lubricated: The sealed design with grease lubrication protects against contamination and provides long-term, maintenance-free operation within the specified temperature range.
S71912 ACE/P4ADGA Bearing Typical Application Areas
The S71912 ACE/P4ADGA is engineered for high-performance applications where precision and speed are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instrumentation: Measuring devices and laboratory equipment.
- High-Frequency Motors and Spindles: Applications requiring minimal vibration and high rotational accuracy.
- Robotics: Precision joints and arms requiring high rigidity and responsiveness.
