71822 CD/P4DGB
71800 Series Super Precision Angular Contact Ball Bearings
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71822 CD/P4DGB Bearing Product Overview & Core Advantages
The 71822 CD/P4DGB is a precision angular contact ball bearing designed for applications requiring exceptional rotational accuracy and high-speed performance. Manufactured to P4 tolerance class, this bearing delivers superior running precision. Its universal matchable (SU) design allows for flexible mounting in various configurations, such as back-to-back (DB) or face-to-face (DF), to optimize system rigidity. Preloaded with Light / Class B, it ensures minimal axial and radial play, making it ideal for machine tool spindles and other high-precision equipment where high rigidity and combination load capacity are critical.
71822 CD/P4DGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Indicates a 15° contact angle and specific internal design optimized for high-speed operation and universal matching. |
| P4 | Denotes the tolerance class, signifying very high precision levels per ISO standards. |
| DGB | Signifies a Universal Matchable (SU) bearing pair, preloaded to Light / Class B. |
71822 CD/P4DGB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design with a 15° contact angle enables the bearing to support significant combination loads (combined radial and axial loads) simultaneously. The universal matching capability allows pairs to be arranged for maximum system stiffness.
- High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, contributing to a high limiting speed of 16,000 rpm. The optimized internal geometry further enhances high-speed stability.
- Precision & Longevity: Manufactured to P4 tolerance with tight dimensional controls (bore and OD tolerance: -0.004mm to 0), this bearing ensures smooth, precise operation. The chrome steel rings and balls provide excellent wear resistance and durability.
- Pre-lubricated & Ready for Use: The bearing comes lubricated from the factory, simplifying installation and ensuring immediate, reliable performance.
71822 CD/P4DGB Bearing Typical Application Areas
- Machine Tool Spindles (e.g., CNC milling, grinding, and turning centers)
- High-Frequency Motors and Precision Gearboxes
- Industrial Pumps and Compressors
- Robotic Arms and Precision Positioning Systems
- Medical Equipment and Aerospace Instrumentation
