S7008 ACD/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
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S7008 ACD/P4A Bearing Product Overview & Core Advantages
The S7008 ACD/P4A is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. This single-row bearing features a 25° contact angle and is supplied with a P4 (ABEC-7) tolerance class, making it ideal for handling combined radial and axial loads simultaneously. Its preloaded configuration ensures high system rigidity, minimal runout, and precise rotational accuracy, which is critical in high-speed and high-precision machinery. The bearing comes lubricated and sealed for immediate installation and long-term, maintenance-free operation.
S7008 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Benefit |
|---|---|---|
| ACD | Angular Contact Design with a 25° contact angle. | Optimized for handling significant axial loads in one direction along with radial loads. |
| P4A | Indicates a P4 (ABEC-7) precision tolerance class with specific internal running accuracy. | Delivers superior running accuracy, low noise, and low vibration for high-performance applications. |
S7008 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The 25° contact angle and preload work in unison to provide exceptional axial and radial stiffness, minimizing deflection under load and ensuring precise shaft positioning.
- Optimized Load Capacity: Engineered to support combined loads, with a radial dynamic load rating of 3578 lbf and a radial static load rating of 2340 lbf.
- Superior High-Speed Performance: The lightweight phenolic resin cage ensures excellent dimensional stability and low friction, contributing to a high limiting speed of 19,000 rpm.
- Ready-to-Use & Long-Lasting: The bearing is pre-lubricated and sealed, protecting against contamination and providing a long service life without the need for re-lubrication within its specified temperature range of -30°C to 110°C.
S7008 ACD/P4A Bearing Typical Application Areas
The S7008 ACD/P4A is ideally suited for high-precision and high-speed rotational systems, including:
- Machine Tool Spindles
- High-Frequency Electric Spindles
- Precision Grinding Equipment
- Industrial Pumps and Compressors
- Medical and Laboratory Instrumentation
