7017 ACE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7017 ACE/HCP4A Bearing Product Overview & Core Advantages
The 7017 ACE/HCP4A is a premium single-row angular contact ball bearing engineered for applications demanding exceptional precision and performance. Its defining feature is the 25° contact angle and ceramic ball construction, which enables it to handle significant combined loads—high radial loads alongside high unidirectional axial loads. Manufactured to a P4 (ABEC-7) tolerance class, it offers superior running accuracy, making it ideal for high-speed and high-rigidity applications. The phenolic cage and optimized internal geometry contribute to smooth operation at its high limiting speed.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7017 | Standard bearing series designation, indicating the basic dimensions: 85mm bore, 130mm OD, 22mm width. |
| ACE | Signifies a 25° contact angle and specific internal design optimized for high-speed operation and load capacity. |
| HC | Indicates the use of Hybrid Ceramic balls (ceramic balls with steel rings), offering benefits like reduced weight, higher speed capability, and longer service life. |
| P4 | Denotes the tolerance class, equivalent to ABEC-7, ensuring extremely high dimensional and running accuracy. |
| A | Indicates that the bearing is supplied with a specific preload for enhanced rigidity and precise shaft positioning. |
7017 ACE/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and allows for a higher limiting speed (23,000 rpm). This also enhances durability and resistance to wear.
High Rigidity & Load Capacity: The 25° contact angle is optimized to support high combined loads. The application of a preload further increases system stiffness, minimizes deflection, and improves rotational accuracy.
Precision & High-Speed Performance: Manufactured to P4 precision class and featuring a lightweight phenolic cage, this bearing ensures minimal vibration and stable operation at very high rotational speeds.
Optimized for Performance: The open design allows for the use of specialized lubrication systems, while the standard lubricated condition ensures immediate readiness for operation within a wide temperature range of -30°C to 110°C.
7017 ACE/HCP4A Bearing Typical Application Areas
The 7017 ACE/HCP4A is designed for high-performance machinery where precision, speed, and reliability are critical. Key application areas include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- High-Frequency Motors and Spindles: Used in PCB drilling and semiconductor manufacturing equipment.
- Precision Robotics: In high-accuracy robotic arms and joints.
- Aerospace & Defense Systems: In gyroscopes, navigation systems, and auxiliary power units.
- High-Performance Pumps and Compressors: Where reliability and high-speed operation are essential.
