71822 ACDGB/P4
71800 Series Super Precision Angular Contact Ball Bearings
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71822 ACDGB/P4 Bearing Product Overview & Core Advantages
The 71822 ACDGB/P4 is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. Engineered to a P4 tolerance class, this bearing excels in handling combined loads, supporting significant radial loads and axial loads in one direction. Its compact design, featuring a 16 mm width, makes it ideal for space-constrained, high-performance assemblies. The light preload (Class B) minimizes deflection under operational stresses, ensuring smooth running and enhanced positional accuracy, which is critical for high-speed applications.
71822 ACDGB/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71822 | Basic bearing series and size designation (110mm bore, 140mm OD). |
| AC | Angular Contact design with a 25° contact angle. |
| DGB | Universal Matchable (SU) bearing. Two bearings are a "matched set" for back-to-back (DB) or face-to-face (DF) mounting to handle bidirectional axial loads. |
| P4 | Indicates a high-precision tolerance class with extremely tight dimensional and running accuracy tolerances. |
71822 ACDGB/P4 Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The angular contact design with a 25° contact angle and phenolic cage provides superior stiffness, enabling the bearing to effectively support combined radial and axial loads. The universal matching (SU) capability allows two bearings to be paired, creating a system that can handle thrust loads from both directions.
High-Speed Performance: The lightweight phenolic cage is instrumental in achieving a high limiting speed of 16,000 rpm. This material offers excellent strength-to-weight ratio and operates smoothly with minimal friction at high rotational speeds.
Precision and Durability: Manufactured to P4 tolerance standards with a light preload, this bearing ensures minimal runout and vibration. The use of high-grade chrome steel for both rings and balls guarantees long-term durability and consistent performance under demanding conditions.
71822 ACDGB/P4 Bearing Typical Application Areas
The 71822 ACDGB/P4 is ideally suited for high-precision machinery and systems where accuracy, speed, and rigidity are paramount. Key application areas include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Robotic Drives and Actuators
- Medical and Dental Equipment Spindles
