S71913 ACD/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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S71913 ACD/P4ADGA Bearing Product Overview & Core Advantages
The S71913 ACD/P4ADGA is a metric double row angular contact ball bearing engineered for applications demanding exceptional precision and reliability. Its design excels at simultaneously handling combined loads (radial and bidirectional axial loads), providing a compact and robust solution. Manufactured to the stringent P4A tolerance class, it guarantees superior running accuracy and high system rigidity. The bearing comes pre-lubricated with grease and features integrated seals, making it a high-precision and low-maintenance component ideal for high-speed operation.
S71913 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7 | Indicates a high-precision bearing series. |
| 1913 | Specifies the bearing size: 65 mm bore, 90 mm OD, 26 mm width. |
| ACD | Contact angle of 25° and a universal matchable (SU) design, allowing two bearings to be mounted in a tandem or back-to-back arrangement. |
| P4A | Denotes a high-precision tolerance class with enhanced running accuracy requirements. |
| DGA | Signifies the bearing is sealed and pre-lubricated with grease. |
S71913 ACD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row angular contact design provides superior high rigidity and stability, enabling it to support significant combined loads from multiple directions simultaneously.
Precision & Speed: The phenolic cage and optimized internal geometry contribute to smooth operation and a high limiting speed of 31,000 rpm, qualifying it as a high-speed bearing.
Long Service Life & Low Maintenance: Constructed from chrome steel for both rings and balls, the bearing offers high durability. The integrated seals and factory-applied grease lubrication protect against contamination and provide long-term, maintenance-free operation within a wide temperature range of -30°C to 110°C.
Universal Matchability (SU): This feature allows for precise preload control when two bearings are paired, simplifying installation and optimizing system performance.
S71913 ACD/P4ADGA Bearing Typical Application Areas
The S71913 ACD/P4ADGA is ideally suited for high-performance machinery requiring precision and speed, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotics and Automation Equipment
