S71926 ACDGB/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S71926 ACDGB/P4A Bearing Product Overview & Core Advantages
The S71926 ACDGB/P4A is a super-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. Operating under the stringent P4A tolerance class, this bearing excels in high-rigidity applications where it must handle combined radial and axial loads simultaneously. Its 25° contact angle and light preload (Class B) are optimized for superior high-speed operation, while its sealed design with phenolic cage ensures reliable, long-lasting performance in demanding environments.
S71926 ACDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning | Performance Benefit |
| S7 | Super-precision bearing series | Ultra-high precision and running accuracy |
| 1926 | Bore: 130mm, OD: 180mm, Width: 24mm | Compact bearing dimensions for space-constrained applications |
| ACDGB | 25° contact angle, light preload, phenolic cage | Optimized for high-speed operation with reduced friction |
| P4A | High-precision tolerance class | Exceptional dimensional and running accuracy |
S71926 ACDGB/P4A Bearing Structural Features & Performance Benefits
High-Speed Capability: The combination of phenolic resin cage and 25° contact angle enables operation at limiting speeds up to 11,000 rpm, making it an ideal high-speed bearing solution.
Superior Load Capacity: With a radial dynamic load rating of 19,598 lbf and radial static load rating of 22,950 lbf, this bearing effectively handles combined loads in demanding applications.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls (bore tolerance: -0.004mm to 0), ensuring exceptional running accuracy and system stability.
Sealed & Lubricated Design: Factory-sealed with grease lubrication providing reliable operation across a wide temperature range from -30°C to 110°C without additional maintenance.
S71926 ACDGB/P4A Bearing Typical Application Areas
The S71926 ACDGB/P4A is specifically engineered for high-performance applications including:
- Machine tool spindles requiring ultra-precision and high-speed operation
- High-frequency machining centers and precision grinding equipment
- Industrial pumps and compressors demanding reliable sealed bearing solutions
- Precision instruments and medical equipment requiring exceptional accuracy
- Robotics and automation systems where high rigidity and precision are critical
