S7019 ACE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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S7019 ACE/HCP4A Bearing Product Overview & Core Advantages
The S7019 ACE/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional speed and rigidity. This sealed bearing features a phenolic cage and ceramic balls, enabling superior performance in high-speed environments. Its P4 (ABEC-7) tolerance class ensures ultra-precise operation, making it ideal for applications where minimal runout and high rotational accuracy are critical. The bearing is preloaded and pre-lubricated, offering immediate high rigidity and reliable, long-term operation.
S7019 ACE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7019 | Basic bearing series and size designation (95mm bore, 145mm OD). |
| ACE | Specific internal design, typically indicating a 25° contact angle and optimized internal geometry for high-speed operation. |
| HCP4A | Hybrid Ceramic with P4A specification. HC denotes Hybrid Ceramic balls, P4 is the super-precision tolerance class (ABEC-7), and A indicates a specific preload level for optimal rigidity. |
S7019 ACE/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction, heat generation, and wear. This results in a higher limiting speed (13,300 rpm), extended service life, and improved reliability in high-speed applications.
- Precision & Rigidity: Manufactured to a P4 tolerance class and supplied with a defined preload (A), this bearing delivers exceptional running accuracy, minimal deflection, and high system stiffness, which is crucial for maintaining precision under load.
- High-Speed Phenolic Cage: The lightweight and robust phenolic resin cage provides excellent dimensional stability and low friction at high rotational speeds, contributing to the bearing's overall high-speed performance.
- Sealed & Lubricated Design: The integrated seals protect against contamination and retain lubricant, ensuring consistent performance and reducing maintenance requirements. The pre-applied lubricant is suitable for the specified temperature range of -30°C to 110°C.
S7019 ACE/HCP4A Bearing Typical Application Areas
The S7019 ACE/HCP4A is ideally suited for high-performance machinery where speed, precision, and rigidity are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- High-Frequency Motors and Spindles: Used in PCB drilling, dental handpieces, and small tool spindles.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other critical rotating assemblies.
