71926 ACDGC/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71926 ACDGC/P4A Bearing Product Overview & Core Advantages
The 71926 ACDGC/P4A is a single-row angular contact ball bearing designed for applications requiring high precision and moderate preload. Operating under the P4A tolerance class, it delivers exceptional dimensional accuracy and rotational precision. Its 25° contact angle is optimized to handle significant combined loads, including substantial axial loads in one direction alongside radial loads. The phenolic cage and universal matchable (SU) designation enable stable high-speed operation up to 7,500 rpm and facilitate precise bearing arrangements in demanding machinery.
71926 ACDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71926 | Basic bearing designation indicating size series and bore diameter (130mm) |
| AC | Angular Contact design with 25° contact angle |
| D | Moderate preload (Class C) |
| GC | Internal clearance group specification |
| P4A | High precision tolerance class exceeding ABEC 7 standards |
71926 ACDGC/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional stability and running accuracy for high-precision applications.
Optimized Load Capacity: The 25° contact angle configuration provides superior performance for combined loads, with dynamic radial load rating of 19,598 lbf and static radial load rating of 22,950 lbf.
High-Speed Capability: The phenolic resin cage and optimized internal geometry enable reliable operation at limiting speeds up to 7,500 rpm, making it suitable for high-speed spindle applications.
Universal Matching Design: As a Universal Matchable (SU) bearing, it can be paired with identical bearings in various configurations (back-to-back, face-to-face, or tandem) to create optimized bearing sets for specific load and rigidity requirements.
71926 ACDGC/P4A Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers and grinding spindles
- Precision Gearboxes - Industrial transmission systems requiring high rotational accuracy
- High-Speed Motors - Electric motors and generators operating at elevated speeds
- Medical Equipment - Diagnostic imaging systems and surgical handpieces
- Aerospace Components - Aircraft auxiliary systems and navigation instruments
- Robotic Joints - Precision articulation points in industrial automation
