7204 ACD/P4ADGB
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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7204 ACD/P4ADGB Bearing Product Overview & Core Advantages
The 7204 ACD/P4ADGB is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high rigidity. Engineered to a P4A tolerance class, it excels in handling combined loads (radial and axial) simultaneously. Its universal matchable (SU) design allows for flexible mounting in pairs to support bidirectional axial loads, making it an ideal, compact solution for high-speed, high-reliability machinery where precision is paramount.
7204 ACD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
- 7204: Basic designation indicating a 20mm bore, 47mm OD, and 28mm width.
- AC: Angular Contact design with a 25° contact angle.
- D: Signifies the bearing is a Universal Matchable (SU) pair.
- P4A: Denotes a very high precision tolerance class.
- D: Indicates a light preload (Class B).
- GB: Specifies the use of a phenolic resin cage.
7204 ACD/P4ADGB Bearing Structural Features & Performance Benefits
The performance of the 7204 ACD/P4ADGB is driven by its specific construction. The 25° contact angle and universal matching capability are fundamental for achieving high axial rigidity and supporting bidirectional thrust loads. The phenolic resin cage (GB) contributes to excellent high-speed performance and reduced friction. Manufactured to P4A precision standards with tight dimensional tolerances, this bearing ensures smooth, quiet, and vibration-free operation, which is critical for the accuracy of the overall system. The light preload (Class B) eliminates internal clearance, enhancing system stiffness from startup.
7204 ACD/P4ADGB Bearing Typical Application Areas
This high-precision, high-speed bearing is ideally suited for demanding applications, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotic Arms and Precision Gearboxes
