71910 CD/P4ADGC
71900 Series Super Precision Angular Contact Ball Bearings
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71910 CD/P4ADGC Bearing Product Overview & Core Advantages
The 71910 CD/P4ADGC is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As part of a universally matchable (SU) pair, it excels at accommodating combined loads—simultaneously handling radial forces and axial thrust in one direction. Its P4A tolerance class ensures ultra-precise dimensions and running accuracy, making it ideal for high-speed spindles and other critical machinery. Pre-loaded at a moderate (Class C) level, this bearing offers optimized stiffness and minimal run-out right out of the box.
71910 CD/P4ADGC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71910 | Basic bearing series and size designation (50mm bore, 72mm OD). |
| C | Specifies a 15° contact angle, optimized for high-speed operation. |
| D | Indicates the bearing is part of a universally matchable (SU) pair for duplex arrangements. |
| P4A | Denotes a high-precision tolerance class with enhanced dimensional and running accuracy. |
| DGC | Signifies the bearing is lubricated and supplied as part of a pre-set, matched pair. |
71910 CD/P4ADGC Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4A tolerance standards with a 15° contact angle, this bearing provides superior stiffness and minimal deflection under load, ensuring precise shaft positioning and smooth operation.
- Optimized for High Speeds: The lightweight phenolic resin cage minimizes centrifugal forces, contributing to a high limiting speed of 46,000 rpm. The moderate preload (Class C) further enhances dynamic stability at high rotational velocities.
- Superior Load Capacity: The angular contact design enables it to handle significant combined radial and axial loads simultaneously. With a dynamic load rating of 4972 lbf and a static load rating of 4680 lbf, it offers reliable performance in demanding conditions.
- Ready-to-Install Matched Set: As a universally matchable (SU) bearing supplied in a set of two, it simplifies installation in duplex configurations (DB, DF, DT) without requiring additional adjustment, saving time and ensuring optimal preload.
71910 CD/P4ADGC Bearing Typical Application Areas
The 71910 CD/P4ADGC is engineered for high-performance applications where precision and speed are critical. Its primary uses include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Drives: High-frequency motors and spindles.
- Industrial Pumps and Compressors: For applications requiring high rotational accuracy.
- Robotics and Automation: Precision joints and rotary axes.
- Aerospace and Defense Systems: Gyroscopes, radar systems, and other sensitive instrumentation.
