S7200 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7200 ACD/HCP4A Bearing Product Overview & Core Advantages
The S7200 ACD/HCP4A is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and performance. This single-row bearing is designed to accommodate combined loads, primarily handling high axial loads in one direction alongside radial loads. Its defining features include a P4 (ABEC-7) tolerance class for superior running accuracy, a 25° contact angle optimized for high axial rigidity, and a preload configuration that minimizes deflection for enhanced system stability. The combination of a ceramic ball material and a phenolic cage contributes to its high-speed capabilities and extended service life, making it an ideal choice for demanding, high-reliability applications.
S7200 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle. |
| HCP4A | Indicates a high-precision bearing with a P4 (ABEC-7) tolerance class and a specific internal design, likely including preload. |
S7200 ACD/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The 25° contact angle and application of preload provide high axial rigidity, minimizing shaft displacement under load and ensuring precise rotational accuracy critical for machine tool spindles and other high-precision equipment.
- Superior High-Speed Performance: The use of ceramic balls (typically silicon nitride) significantly reduces centrifugal forces, lowers operating temperatures, and minimizes friction. Combined with the lightweight, high-strength phenolic cage, this enables the bearing to achieve its high limiting speed of 63,000 rpm.
- Enhanced Durability and Life: Ceramic balls are electrically resistant and less prone to wear and fatigue compared to steel, leading to a longer operational lifespan, especially in high-speed or electrically challenging environments.
- Ready-to-Install and Lubricated: The bearing comes pre-lubricated, simplifying installation and ensuring immediate, reliable operation upon startup.
S7200 ACD/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles.
- Precision Instrumentation: Measuring devices, optical scanners.
- High-Speed Motors and Drives: Electric spindles, high-frequency motors.
- Aerospace and Defense Systems: Gyroscopes, navigation equipment.
