71924 ACD/P4ADGA
71900 Series Super Precision Angular Contact Ball Bearings
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71924 ACD/P4ADGA Bearing Product Overview & Core Advantages
The 71924 ACD/P4ADGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. This universal matchable (SU) bearing features an extra light preload (Class A) and P4A tolerance class, making it ideal for high-speed spindles and precision machinery. Its 25° contact angle is optimized to support combined loads, handling significant radial and axial forces simultaneously. The open design, when properly lubricated, allows for superior high-speed performance with a limiting speed of 16,250 rpm.
71924 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
| 71924 | Basic bearing series and size designation |
| AC | Angular Contact design with 25° contact angle |
| D | High precision tolerance class designation |
| P4A | Ultra-precision tolerance class (superior to ABEC 7) |
| DGA | Universal matchable bearing set designation |
71924 ACD/P4ADGA Bearing Structural Features & Performance Benefits
Premium Material Construction: Manufactured from chrome steel for both rings and balls, ensuring exceptional durability and wear resistance in high-stress applications.
High-Speed Capability: The phenolic cage provides excellent strength-to-weight ratio, reducing centrifugal forces and enabling stable operation at high rotational speeds up to 16,250 rpm.
Superior Rigidity: The angular contact design with 25° contact angle delivers high rigidity and precise rotational accuracy, essential for machine tool applications.
Exceptional Load Capacity: With a dynamic load rating of 26,775 lbf and static load rating of 38,925 lbf, this bearing reliably handles combined radial and axial loads in demanding operating conditions.
Precision Engineering: The P4A tolerance class ensures minimal runout and vibration, while the universal matchable design allows for flexible mounting arrangements in preloaded configurations.
71924 ACD/P4ADGA Bearing Typical Application Areas
Machine Tool Spindles: High-precision milling, grinding, and turning centers requiring exceptional accuracy and rigidity
Precision Robotics: High-speed robotic arms and automation equipment demanding reliable angular contact bearings
Aerospace Systems: Critical rotating components in aircraft systems where precision and reliability are paramount
Medical Equipment: High-speed dental handpieces and medical imaging devices requiring smooth, precise operation
High-Speed Motors: Precision electric motors and spindles in industrial and semiconductor manufacturing equipment
