S71912 ACB/P4ADGB
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S71912 ACB/P4ADGB Bearing Product Overview & Core Advantages
The S71912 ACB/P4ADGB is a precision double-row angular contact ball bearing engineered for applications demanding exceptional accuracy and reliability. Its design enables it to simultaneously support combined loads—significant radial loads and bidirectional axial loads. Featuring a compact cross-section, this bearing offers high rigidity and is optimized for high-speed operation, making it an ideal solution for high-performance machinery where precision and durability are critical.
S71912 ACB/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S | Designates a super-precision bearing. |
| 7 | Indicates an angular contact ball bearing design. |
| 1912 | Specifies the bearing dimensions: 60 mm bore, 85 mm OD, 26 mm width. |
| ACB | Signifies a 25° contact angle and Universal Matchable (SU) design for flexible mounting arrangements. |
| P4A | Denotes a very high tolerance class (equivalent to ABEC 7), ensuring exceptional running accuracy. |
| DGB | Indicates a sealed unit, pre-lubricated with grease for long-term, maintenance-free operation. |
S71912 ACB/P4ADGB Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double-row design provides superior rigidity and enables the bearing to handle significant combined radial and axial loads from both directions, making it suitable for complex loading conditions.
High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, contributing to a high limiting speed of 36,000 rpm. The optimized internal geometry further enhances high-speed capability.
Precision & Longevity: Manufactured to a P4A tolerance class, this bearing guarantees exceptional running accuracy and low vibration. The integral seals and pre-applied grease lubrication protect against contamination and provide a long service life within the specified temperature range of -30°C to 110°C, offering a maintenance-free solution.
S71912 ACB/P4ADGB Bearing Typical Application Areas
The S71912 ACB/P4ADGB is ideally suited for high-precision and high-speed machinery, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Advanced Robotics and Automation Equipment
