71926 ACD/P4ATGA
71900 Series 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 71926 ACD/P4ATGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This universal matchable bearing features a 25° contact angle and P4A super-precision tolerance class, making it ideal for configurations where high-speed operation and superior running accuracy are critical. Its extra light preload (Class A) ensures minimal friction and precise shaft positioning, while the phenolic cage contributes to smooth, high-speed performance.
71926 ACD/P4ATGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71926 | Basic bearing series and size designation |
| ACD | Angular Contact Design with a 25° contact angle |
| P4A | Super-precision tolerance class for exceptional dimensional and running accuracy |
| T | Phenolic (synthetic resin) cage material |
| GA | Universal Matchable (SU) arrangement, allowing for flexible mounting in sets |
Structural Features and Performance Benefits
High Rigidity and Precision: Manufactured to P4A tolerance standards, this bearing ensures minimal runout and vibration, providing stable and precise rotational performance essential for high-accuracy machinery.
Optimized Load Capacity: The 25° contact angle enables efficient handling of combined radial and axial loads, making it suitable for applications with complex loading conditions.
Superior High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces and ensures stable operation at high rotational speeds, with a limiting speed of 7,500 rpm.
Universal Matching Capability: Designed as a Universal Matchable (SU) bearing, it can be mounted in various preload arrangements (back-to-back, face-to-face, or tandem) using three bearings in a matched set, offering flexibility in machine design.
Premium Material Construction: Manufactured from chrome steel for both rings and balls, ensuring high durability and long service life under demanding operating conditions.
71926 ACD/P4ATGA Bearing Typical Application Areas
- Machine Tool Spindles for high-precision machining centers and grinding machines
- High-Speed Spindles in CNC milling and turning centers
- Precision Instrumentation requiring minimal vibration and high running accuracy
- Robotic Arm Joints and precision automation equipment
- Aerospace Positioning Systems and other critical motion control applications
