7017 ACEGA/HCP4AL
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7017 ACEGA/HCP4AL Bearing Product Overview & Core Advantages
The 7017 ACEGA/HCP4AL is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single bearing features an Extra Light (Class A) preload and is manufactured to P4A super-precision tolerance, ensuring minimal runout and superior rotational accuracy. Its 25° contact angle is optimized to handle combined radial and axial loads simultaneously. The use of a phenolic resin cage and ceramic balls contributes to its high-speed capability, low friction, and extended service life, making it ideal for high-reliability, high-rigidity systems.
7017 ACEGA/HCP4AL Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle. |
| EGA | Universal Matchable (SU designation). Two bearings are selectively matched to a specific axial clearance or preload when mounted together. |
| HC | Hybrid Ceramic: Features ceramic balls for enhanced performance. |
| P4A | Super Precision tolerance class, exceeding ABEC 7/ISO P4 standards. |
7017 ACEGA/HCP4AL Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The P4A tolerance class and Class A preload ensure extremely tight internal clearances, providing superior shaft positioning accuracy and system rigidity, which is critical for minimizing deflection under load.
- Enhanced High-Speed Performance: The combination of a lightweight phenolic cage and low-density ceramic (silicon nitride) balls reduces centrifugal forces and operating temperatures, enabling a high limiting speed of 28,000 rpm.
- Superior Load Capacity: The 25° contact angle is engineered to efficiently support significant combined loads (radial and axial), with a dynamic load rating of 7312 lbf and a static load rating of 6300 lbf.
- Reduced Friction and Long Life: Ceramic balls are harder and smoother than steel, leading to lower friction, reduced heat generation, and increased resistance to wear, significantly extending the bearing's operational lifespan.
- Universal Matching: The EGA suffix indicates that bearings are universal matchable, allowing for simplified mounting in pairs (back-to-back, face-to-face, or tandem) to achieve the desired preload and stiffness without selective grinding.
7017 ACEGA/HCP4AL Bearing Typical Application Areas
This high-performance precision bearing is ideally suited for applications where speed, accuracy, and rigidity are paramount. Key industries and machinery include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Aerospace & Defense Systems: Gyroscopes, radar platforms, and auxiliary power units (APUs).
- High-Frequency Motors and Spindles: Electric vehicle traction motors, CNC router spindles.
- Medical Equipment: Dental handpieces, high-speed centrifuges, and imaging scanner gantries.
