S7022 ACD/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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Main Dimensions
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S7022 ACD/P4ADGA Bearing Product Overview & Core Advantages
The S7022 ACD/P4ADGA is a precision double row angular contact ball bearing designed for applications demanding high rigidity and exceptional running accuracy. Engineered to accommodate combined loads (radial and bidirectional axial loads) simultaneously, its compact design is ideal for high-precision machinery requiring superior reliability. This bearing features a P4A tolerance class for ultra-precision performance, a phenolic cage optimized for high-speed operation, and comes pre-lubricated and sealed for long service life.
S7022 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance & Advantage |
|---|---|---|
| S7022 | Basic bearing designation | Defines the core bearing dimensions: 110mm bore, 170mm OD, 56mm width. |
| AC | Angular Contact design | Optimized geometry for handling combined loads. |
| D | Double row design | Provides high rigidity and increased load capacity compared to single row bearings. |
| P4A | Tolerance Class | Denotes ultra-precision dimensional and running accuracy, suitable for the most demanding high-speed and high-accuracy applications. |
| DGA | Sealed and Greased | Indicates the bearing is supplied with contact seals and pre-filled with grease, offering protection from contaminants and providing ready-to-install, low-maintenance operation. |
S7022 ACD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The double row angular contact design, with a 25° contact angle, provides significantly higher radial and axial stiffness than single row bearings. This enables stable support for shafts under heavy combined loads, minimizing deflection.
Optimized High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces and ensures stable operation at the high limiting speed of 16,000 rpm. The precision P4A grade further minimizes vibration and heat generation at high speeds.
Universal Matchable (SU) Design: This bearing is "universally matchable," meaning two identical bearings can be paired in a back-to-back (DB) or face-to-face (DF) arrangement without the need for selective mounting. This simplifies installation and ensures optimal preload and performance in matched sets.
Sealed and Pre-Lubricated for Longevity: The integrated seals effectively exclude contaminants like dust and moisture. Combined with the factory-applied grease, this creates a maintenance-free system ideal for applications where re-lubrication is difficult.
S7022 ACD/P4ADGA Bearing Typical Application Areas
The S7022 ACD/P4ADGA is ideally suited for high-performance machinery where precision, speed, and rigidity are critical. Key industries and equipment include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Gearboxes: In robotics, aerospace, and other high-tech transmission systems.
- High-Frequency Motors and Spindles: Where minimal runout and high rotational accuracy are required.
- Medical and Laboratory Equipment: Such as centrifuges and precision scanners.
- Pumps and Compressors: For handling axial and radial loads in demanding fluid handling systems.
