S7008 CE/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7008 CE/P4A Bearing Product Overview & Core Advantages
The S7008 CE/P4A is a single-row angular contact ball bearing engineered for applications demanding high precision and superior rotational accuracy. Positioned in the P4 (ABEC-7) tolerance class, it is designed to handle significant combined loads, particularly thrust loads in one direction, making it ideal for high-speed spindles and precision machinery. Its compact design, sealed construction, and preloaded configuration ensure high rigidity and reliable performance in demanding operational environments.
S7008 CE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| S7008 | Standard designation for a 40mm bore, 68mm OD, 15mm width angular contact ball bearing. |
| CE | Indicates a contact angle of 15° and a specific internal design optimized for high-speed operation and rigidity. |
| P4A | Denotes a P4 (ABEC-7) tolerance class with specific running accuracy requirements, ensuring minimal vibration and high-precision performance. |
| Sealed / Lubricated | Comes with integrated seals and factory-applied lubrication, offering protection from contaminants and providing long-term, maintenance-free operation. |
S7008 CE/P4A Bearing Structural Features & Performance Benefits
High Precision & Rigidity: Manufactured to P4 tolerance class with a 15° contact angle and preload, this bearing delivers exceptional running accuracy and stiffness, minimizing deflection under load for superior machining quality.
Optimized High-Speed Performance: The phenolic resin cage is lightweight and robust, contributing to lower centrifugal forces and enabling a high limiting speed of 30,000 rpm. This makes it suitable for high-speed spindle applications.
Superior Load Capacity: With a dynamic load rating of 2790 lbf and a static load rating of 1721 lbf, the bearing is capable of handling significant combined radial and axial loads.
Sealed and Lubricated for Life: The sealed design effectively excludes contaminants, while the factory-applied lubricant ensures consistent performance across the specified temperature range of -30°C to 110°C, resulting in a long service life with minimal maintenance.
S7008 CE/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC lathes.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- High-Speed Motors and Drives: Servo motors, spindle motors, and compressor drives.
- Medical and Dental Equipment: High-speed handpieces and precision laboratory instruments.
- Aerospace Instrumentation: Gyroscopes, navigation systems, and auxiliary power units (APUs).
