71906 ACDGC/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
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71906 ACDGC/P4A Bearing Product Overview & Core Advantages
The 71906 ACDGC/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. As a single bearing that is Universal Matchable (SU), it can be paired with another identical bearing to form a precisely preloaded set, optimizing performance in high-speed and high-rigidity environments. Its P4A tolerance class ensures superior dimensional and running accuracy, making it ideal for machine tool spindles and other precision equipment where minimal runout and vibration are critical.
71906 ACDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
- 71906: Basic bearing series, indicating a light series, 30mm bore, 47mm OD, 9mm width.
- AC: Angular Contact design with a 25° contact angle.
- D: High ball diameter and quantity for increased load capacity.
- GC: Specific internal clearance and preload designation (Moderate / Class C).
- P4A: Tolerance class denoting very high precision for both dimensional and running accuracy.
71906 ACDGC/P4A Bearing Structural Features & Performance Benefits
This bearing's performance is derived from its optimized construction. The 25° contact angle is engineered to support significant combined loads, effectively handling both radial and axial forces. The phenolic cage contributes to excellent high-speed performance, reducing friction and allowing for a limiting speed of 100,500 rpm. Manufactured to a P4A tolerance class, it guarantees smooth operation with minimal vibration. The universal matchable (SU) feature allows for simple pairing to achieve a defined preload, significantly enhancing system rigidity and rotational accuracy without the need for complex adjustments.
71906 ACDGC/P4A Bearing Typical Application Areas
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- High-Frequency Motors
- Advanced Robotics and Automation Systems
