71936 ACD/P4ADGA
71900 Series Super Precision Angular Contact Ball Bearings
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71936 ACD/P4ADGA Bearing Product Overview & Core Advantages
The 71936 ACD/P4ADGA is a super-precision angular contact ball bearing designed for the most demanding applications. Its P4A tolerance class and 25° contact angle deliver exceptional rotational accuracy and rigidity. As a Universal Matchable (SU) bearing supplied in a pre-matched pair, it is engineered to handle combined radial and axial loads simultaneously with superior performance. The extra light preload (Class A) ensures smooth, quiet operation at high speeds, making it ideal for high-precision, high-reliability spindles and systems.
71936 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| ACD | 25° Contact Angle, High Precision | Optimized for high axial load capacity and rigidity. |
| P4A | Super Precision Tolerance Class (ABEC 7 / ISO P4) | Guarantees extremely tight running accuracy for superior system performance. |
| DGA | Universal Matchable (SU), Preloaded Pair | Simplifies installation and ensures optimal preload for maximum stiffness and speed. |
71936 ACD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row angular contact design and 25° contact angle provide exceptional resistance to combined loads, ensuring stable operation under heavy-duty conditions. The radial dynamic load rating of 58,500 lbf and static load rating of 90,000 lbf confirm its robust performance.
Super-Precision & High-Speed Performance: Manufactured to P4A tolerance standards with a phenolic cage, this bearing achieves a limiting speed of 16,250 rpm. The cage material offers excellent strength-to-weight ratio and smooth operation at high rotational velocities.
Optimized Internal Geometry: Featuring 27 high-grade chrome steel balls with a diameter of 22.225 mm, the bearing is engineered for low friction, reduced heat generation, and extended service life.
Ready-to-Install Matched Set: Supplied as a universally matchable (SU) pair with extra light preload, it eliminates complex mounting calculations and ensures immediate, optimal performance upon installation.
71936 ACD/P4ADGA Bearing Typical Application Areas
The 71936 ACD/P4ADGA is the bearing of choice for high-performance machinery requiring extreme precision and speed. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, engraving, and high-frequency motor spindles.
- Industrial Pumps & Compressors: Applications demanding high rigidity and reliability.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other critical navigation equipment.
- Medical Equipment: High-speed dental handpieces and imaging device rotors.
