71932 ACD/P4ADGA
71900 Series Super Precision Angular Contact Ball Bearings
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71932 ACD/P4ADGA Bearing Product Overview & Core Advantages
The 71932 ACD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a universal matchable (SU) bearing supplied in pre-lubricated pairs, it delivers superior performance in handling combined radial and axial loads simultaneously. Manufactured to P4A tolerance class with an Extra Light (Class A) preload, this bearing ensures minimal runout and vibration, making it ideal for high-speed spindle applications and other precision machinery where reliability and dimensional stability are critical.
71932 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| ACD | 25° Contact Angle, Universal Matchable Design | Optimized for combined load capacity and flexible mounting configurations |
| P4A | High Precision Tolerance Class | Ensures excellent running accuracy and minimal vibration |
| DGA | Universal Matchable Pair with Preload | Provides rigid bearing arrangement without additional adjustment |
71932 ACD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row angular contact design with 25° contact angle provides superior stiffness and load distribution, capable of handling radial dynamic loads up to 44,775 lbf and static loads up to 68,625 lbf. The universal matchable pairing allows for flexible mounting arrangements while maintaining optimal preload.
Precision Engineering: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy. The phenolic cage offers excellent strength-to-weight ratio and smooth operation at high speeds.
High-Speed Performance: With a limiting speed of 11,000 rpm, the optimized internal geometry and 19.05 mm precision balls (28 in quantity) minimize friction and heat generation. The pre-lubrication ensures immediate operational readiness and consistent performance.
Material Excellence: Constructed from chrome steel for both rings and balls, providing superior hardness, wear resistance, and durability across the operating temperature range of -30°C to 110°C.
71932 ACD/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers requiring exceptional rigidity and accuracy
- Precision Industrial Pumps: Applications demanding reliable performance under combined loads
- High-Speed Compressors: Where balanced operation and minimal vibration are critical
- Robotic Systems: Precision joints and positioning mechanisms requiring high stiffness
- Aerospace Components: Control systems and auxiliary drives needing reliable angular contact bearings
- Medical Equipment: High-speed dental handpieces and surgical tools requiring precision bearings
