7017 ACE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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7017 ACE/HCP4ADGA Bearing Product Overview & Core Advantages
The 7017 ACE/HCP4ADGA is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This universal matchable bearing features a ceramic ball construction and P4A super-precision tolerance, making it ideal for high-speed spindles and precision machinery. Its 25° contact angle and extra light preload (Class A) are optimized for superior high-speed operation and rigidity, enabling it to handle combined radial and axial loads simultaneously with minimal heat generation and friction.
7017 ACE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACE | Angular Contact, 25° contact angle, Universal Matchable (SU) arrangement |
| HC | Hybrid Ceramic (Ceramic balls with steel rings) |
| P4A | Super Precision Tolerance Class (Equivalent to ABEC 7/ISO P4) |
| DGA | Pre-lubricated with specific high-performance grease |
7017 ACE/HCP4ADGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Design: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and extends service life, particularly in high-speed applications.
High Rigidity & Precision: The P4A tolerance class ensures extremely tight dimensional control and running accuracy. The 25° contact angle provides optimal stiffness for resisting combined loads, making it suitable for applications requiring minimal deflection.
Superior High-Speed Capability: The lightweight phenolic resin cage and ceramic balls work in concert to enable a limiting speed of 17,000 rpm. The universal matchable (SU) design allows for flexible bearing arrangements without selective mounting.
Optimized Preload & Lubrication: The extra light preload (Class A) minimizes friction at high speeds while maintaining system rigidity. The bearing comes pre-lubricated for immediate operation within its specified temperature range.
7017 ACE/HCP4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC milling machines
- Precision Instrumentation: Measuring equipment, optical scanners, and coordinate measuring machines
- High-Speed Motors: Electric spindle motors, high-frequency motors, and servo drives
- Aerospace & Defense: Gyroscopes, navigation systems, and auxiliary power units
- Medical Equipment: Dental handpieces, laboratory centrifuges, and imaging devices
