S71914 ACDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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Product Overview and Core Advantages
The S71914 ACDGA/P4A is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Operating under the P4A tolerance class, this metric bearing is engineered to handle combined loads with high efficiency, featuring a 25° contact angle for optimal axial load capacity. Its compact design, with a 70 mm bore and 16 mm width, provides a high-rigidity solution for precision spindles and high-speed machinery. The extra light preload (Class A) ensures minimal running noise and vibration, making it ideal for high-precision, high-reliability applications.
S71914 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
- S: Denotes a universal matchable bearing, designed to be paired with another identical bearing to form a matched set.
- 7: Identifies the bearing as an angular contact ball bearing.
- 1914: Specifies the dimensional series; '19' for the series and '14' for the 70 mm bore diameter.
- AC: Stands for a 25° contact angle.
- D: Indicates the bearing is filled with a standard grease lubrication.
- GA: Signifies an extra light preload (Class A).
- P4A: Represents an ultra-precision tolerance class exceeding ABEC 7 standards, ensuring extremely tight dimensional and running accuracy.
Structural Features and Performance Benefits
The S71914 ACDGA/P4A incorporates several advanced features that deliver superior performance:
- High Rigidity and Load Capacity: The single-row design, combined with a 25° contact angle and phenolic cage, provides excellent stability and the ability to support significant combined radial and axial loads.
- Precision and High-Speed Performance: Manufactured to P4A tolerance standards with extremely tight bore, outer diameter, and width tolerances, this bearing ensures smooth operation. The lightweight phenolic cage and optimized grease lubrication contribute to a high limiting speed of 28,000 rpm.
- Sealed and Pre-lubricated for Longevity: As a sealed bearing pre-filled with grease, it is protected from contamination and is effectively maintenance-free within its specified temperature range of -30°C to 110°C.
- Universal Matching: Designed as a Universal Matchable (SU) bearing, it can be universally paired with another bearing of the same type, simplifying installation and ensuring precise preload and performance in a duplex set.
S71914 ACDGA/P4A Bearing Typical Application Areas
The S71914 ACDGA/P4A 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
