S7018 CE/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7018 CE/P4A Bearing Product Overview & Core Advantages
The S7018 CE/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Designed to accommodate primarily axial loads in one direction, this bearing features a 15° contact angle and is supplied with a P4 (ABEC-7) tolerance class for superior running accuracy. Its phenolic resin cage and pre-lubrication contribute to stable operation at high speeds, making it an ideal solution for machine tool spindles and other precision machinery demanding high reliability and performance.
S7018 CE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CE | Contact angle of 15° | Optimized for combined axial and radial loads |
| P4A | P4 tolerance class (ABEC-7) | High precision running accuracy for demanding applications |
S7018 CE/P4A Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4 tolerance class with strict dimensional control (bore diameter tolerance: -0.008mm to 0) ensuring minimal runout and vibration.
Optimized Load Capacity: The 15° contact angle enables efficient handling of combined loads, with a dynamic load rating of 8055 lbf and static load rating of 7200 lbf.
High-Speed Performance: The phenolic resin cage provides excellent strength-to-weight ratio, contributing to the limiting speed of 13,300 rpm while reducing centrifugal forces.
Premium Material Selection: Chrome steel rings and balls offer superior wear resistance and fatigue life, suitable for continuous operation in demanding environments.
S7018 CE/P4A Bearing Typical Application Areas
- Machine tool spindles and high-precision machining centers
- High-frequency motors and precision servo systems
- Medical equipment requiring high rotational accuracy
- Aerospace components and instrumentation systems
- Robotics and automation equipment joints
