71913 ACDGA/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71913 ACDGA/P4A Bearing Product Overview & Core Advantages
The 71913 ACDGA/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Operating under P4A tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its 25° contact angle is optimized to handle significant combined loads (radial and axial) simultaneously. The phenolic cage and universal matching capability make it ideal for high-speed spindle arrangements and precision machinery where rigidity and thermal stability are critical.
71913 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| AC | Angular Contact design | Optimized for combined radial and axial loads |
| DGA | Universal Matchable bearing | Enables precise preload arrangement in sets |
| P4A | High precision tolerance class | Superior running accuracy and dimensional stability |
71913 ACDGA/P4A Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy for precision applications.
Optimized Load Capacity: The 25° contact angle and 26 chrome steel balls provide excellent combined load capacity with radial dynamic rating of 4388 lbf and static rating of 3600 lbf.
High-Speed Performance: The phenolic cage enables superior high-speed operation up to 36,000 rpm, while the open design facilitates efficient lubrication management.
Thermal Stability: Phenolic cage material maintains dimensional stability across the operating temperature range of -30°C to 110°C, ensuring consistent performance under thermal variations.
71913 ACDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles requiring P4A accuracy
- Precision Instrumentation: Measuring equipment and optical instruments demanding minimal runout
- High-Speed Motors: Spindle motors and high-RPM industrial drives
- Aerospace Components: Guidance systems and precision actuation mechanisms
- Medical Equipment: Dental handpieces and surgical tool spindles
