S7022 ACDGC/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7022 ACDGC/P4A Bearing Product Overview & Core Advantages
The S7022 ACDGC/P4A is a super-precision double row angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered to a P4A tolerance class, it provides superior running precision. Its double row design enables it to support combined loads (radial and bidirectional axial loads) simultaneously, making it an ideal, compact solution for high-speed spindles and other precision machinery where high reliability and high rigidity are paramount.
S7022 ACDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7022 | Basic bearing designation for a 110mm bore, 170mm OD double row angular contact ball bearing. |
| AC | 25° contact angle, optimized for supporting high axial loads. |
| DGC | Indicates a Moderate preload (Class C) applied to the bearing for enhanced stiffness and precise shaft positioning. |
| P4A | Denotes an ultra-precision tolerance class superior to ABEC 7, ensuring minimal runout and vibration. |
S7022 ACDGC/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The double row angular contact design provides significantly greater radial and axial rigidity compared to single row bearings. With a 25° contact angle and a radial dynamic load rating of 23,400 lbf, it is engineered to handle demanding combined loads in high-performance applications.
Optimized for High-Speed Operation: The lightweight phenolic resin cage minimizes centrifugal forces, contributing to a high limiting speed of 16,000 rpm. This, combined with the grease lubrication, ensures stable operation at high rotational velocities.
Precision and Long-Term Reliability: Manufactured to P4A tolerances from high-grade chrome steel, the bearing guarantees exceptional dimensional accuracy and smooth operation. The sealed design with pre-applied grease protects against contamination and provides long-term, maintenance-free performance within a temperature range of -30°C to 110°C.
S7022 ACDGC/P4A Bearing Typical Application Areas
The S7022 ACDGC/P4A is ideally suited for high-precision, high-speed machinery, including:
- Machine Tool Spindles (CNC milling, grinding, and turning centers)
- High-Frequency Precision Spindles
- Robotic Drives and Precision Gearboxes
- Advanced Medical and Dental Equipment
- Aerospace Instrumentation and Control Systems
