S7003 ACE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7003 ACE/HCP4A Bearing Product Overview & Core Advantages
The S7003 ACE/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered to a P4 (ABEC-7) tolerance class, it features a ceramic ball and phenolic cage construction, enabling superior high-speed capabilities and reduced rotational mass. This single bearing is preloaded, offering high system rigidity and precise rotational accuracy, making it ideal for applications where minimal runout and high reliability are critical.
S7003 ACE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| S7003 | Basic bearing series and size designation (17mm bore, 35mm OD, 10mm width). | Defines the core bearing dimensions. |
| ACE | Specific internal design and contact angle (25°). | Optimized for combined loads (radial and axial). |
| HC | Hybrid Ceramic (Silicon Nitride balls). | Enables higher speeds, reduced friction, and longer service life. |
| P4 | Precision Tolerance Class (ABEC-7). | Guarantees extremely tight dimensional and running accuracy for precision applications. |
| Sealed / Lubricated | Integrated seals and factory-applied lubricant. | Provides contamination protection and is ready for immediate use, supporting the limiting speed of 68,000 rpm. |
S7003 ACE/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Design: The use of ceramic balls with a steel ring significantly reduces centrifugal forces, lowers operating temperature, and increases the limiting speed. This construction is electrically insulating and offers superior performance in high-speed and high-temperature environments.
Phenolic Cage: The lightweight and robust phenolic resin cage contributes to smooth operation at high velocities, reduces vibration, and is compatible with a wide range of lubricants.
25° Contact Angle & Preload: The specific contact angle is optimized to handle significant axial loads in one direction while also supporting radial loads. The built-in preload ensures high system rigidity, minimizes axial and radial play, and enhances positional accuracy.
Sealed and Lubricated: The integrated sealing protects the precision internals from contaminants. The factory-applied, high-performance grease is formulated for the specified temperature range of -30°C to 110°C, ensuring immediate readiness and long-term reliability.
S7003 ACE/HCP4A Bearing Typical Application Areas
The S7003 ACE/HCP4A is ideally suited for high-performance machinery and precision instruments where speed, accuracy, and rigidity are paramount. Key industries and equipment include:
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- Robotic Arm Joints and Drives
- High-Frequency Dental and Medical Handpieces
- Advanced Aerospace Actuators and Instrumentation
