S7022 CDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7022 CDGA/P4A Bearing Product Overview & Core Advantages
The S7022 CDGA/P4A is a high-precision double row angular contact ball bearing engineered for applications demanding exceptional accuracy and rigidity. This sealed bearing is designed to accommodate combined loads (radial and bidirectional axial loads) simultaneously, making it an ideal solution for complex load scenarios. Its compact design, featuring a universal match (SU) designation, allows for flexible mounting in preloaded sets to achieve optimal system stiffness and rotational precision. Manufactured to the stringent P4A tolerance class, it guarantees superior running accuracy and is pre-lubricated with grease for long-term, maintenance-free operation in high-speed environments.
S7022 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7022 | Basic bearing designation, indicating a 110mm bore, 170mm OD double row angular contact ball bearing. |
| C | Specifies a 15° contact angle, optimized for high axial load capacity. |
| DG | Indicates a Universal Matchable (SU) bearing. Two such bearings can be mounted in a "back-to-back" (DB) or "face-to-face" (DF) arrangement to form a preloaded set. |
| A | Denotes an Extra Light preload class, providing high rigidity with minimal friction and heat generation. |
| P4A | The tolerance class, signifying very high precision for dimensional and running accuracy, exceeding ABEC 7 standards. |
S7022 CDGA/P4A Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design provides superior radial and axial rigidity compared to single row bearings, enabling stable performance under combined loads. The optimized 15° contact angle effectively handles significant bidirectional axial loads.
High-Speed Performance: The lightweight, durable phenolic resin cage ensures smooth operation, reduces centrifugal forces, and contributes to the bearing's high limiting speed of 16,000 rpm.
Sealed & Lubricated for Life: As a sealed bearing, it is protected from contamination. Pre-lubricated with high-quality grease, it offers a wide operating temperature range (-30°C to 110°C) and is designed for maintenance-free service life in many applications.
Precision Engineering: Manufactured from chrome steel and adhering to the P4A tolerance class, this bearing guarantees minimal runout and vibration, which is critical for high-precision machinery.
S7022 CDGA/P4A Bearing Typical Application Areas
The S7022 CDGA/P4A is ideally suited for high-performance applications requiring precision, speed, and rigidity, including:
- Machine Tool Spindles (e.g., milling, grinding)
- High-Frequency Motors and Spindle Drives
- Precision Gearboxes and Robotic Actuators
- Medical Equipment and Dental Handpieces
- Aerospace Instrumentation and Avionics
