S7204 ACDGB/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7204 ACDGB/P4A Bearing Product Overview & Core Advantages
The S7204 ACDGB/P4A is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. As a single bearing with a Universal Matchable (SU) designation, it is engineered to handle combined loads—significant radial and axial loads in one direction—making it ideal for high-precision, high-reliability machinery. Its P4A tolerance class ensures superior running accuracy, while the light preload (Class B) minimizes deflection under operational stresses, contributing to outstanding system performance and longevity.
S7204 ACDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle for optimal axial load capacity. |
| DGB | Duplex arrangement, Back-to-Back (DB) configuration. This bearing is one of a matched set of 4 for universal mounting. |
| P4A | High precision tolerance class exceeding ABEC 7, ensuring extremely tight dimensional and running accuracy for critical applications. |
S7204 ACDGB/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The bearing's angular contact design and 25° contact angle are optimized to support high combined loads. The light preload eliminates internal clearance, providing maximum system stiffness and precise rotational guidance.
High-Speed Performance: The phenolic cage is lightweight and robust, enabling smooth operation at the high limiting speed of 75,000 rpm. This makes it an excellent high-speed bearing for demanding applications.
Precision and Durability: Manufactured to P4A tolerances from chrome steel for both rings and balls, this bearing guarantees exceptional dimensional stability and long service life under precise operating conditions.
Ready-to-Install: The bearing is pre-lubricated with grease and is part of a universally matchable set, simplifying installation and ensuring immediate, reliable performance within a temperature range of -30°C to 110°C.
S7204 ACDGB/P4A Bearing Typical Application Areas
The S7204 ACDGB/P4A is ideally suited for high-performance applications where precision, speed, and rigidity are paramount. Typical uses include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Aerospace and Defense Actuation Systems
