7017 ACD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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7017 ACD/HCP4ADGA Bearing Product Overview & Core Advantages
The 7017 ACD/HCP4ADGA is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and performance. Designed with a 25° contact angle and manufactured to P4A tolerance class, this bearing excels in high-speed and high-rigidity scenarios. Its universal matchable (SU) design allows for flexible mounting arrangements, enabling it to accommodate combined radial and axial loads efficiently. The use of ceramic balls and a phenolic cage contributes to reduced friction, lower operating temperatures, and extended service life, making it ideal for mission-critical machinery.
7017 ACD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| AC | Angular Contact | Optimized for combined loads with a 25° contact angle. |
| D | High Ball Complement | Increased load carrying capacity and rigidity. |
| HC | Hybrid Ceramic | Ceramic balls for high-speed operation and longer life. |
| P4A | High Precision Tolerance | Superior running accuracy for demanding applications. |
| DGA | Universal Matchable Pair (SU), Extra Light Preload | Simplified mounting and optimized preload for stiffness. |
7017 ACD/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The combination of a 25° contact angle and a high ball complement (21 balls) provides exceptional stiffness and the ability to handle significant combined radial and axial loads (Dynamic: 23,400 lbf, Static: 27,450 lbf).
- Superior High-Speed Performance: The hybrid ceramic design with silicon nitride balls significantly reduces centrifugal forces and friction, enabling a high limiting speed of 28,000 rpm. The lightweight phenolic resin cage further enhances high-speed stability and reduces cage wear.
- Precision and Accuracy: Manufactured to ABEC 7 / P4A precision tolerances and featuring tight dimensional control on the bore, OD, and width, this bearing ensures minimal runout and vibration for ultra-precise applications.
- Optimized for Matched Sets: The Universal Matchable (SU) designation and Extra Light Preload (Class A) mean two bearings can be paired without selective mounting, simplifying installation while providing controlled preload for optimal stiffness and accuracy.
7017 ACD/HCP4ADGA Bearing Typical Application Areas
The 7017 ACD/HCP4ADGA is ideally suited for high-performance machinery where precision, speed, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy positioning systems.
- Aerospace & Defense: Gyroscopes, radar systems, and auxiliary power units (APUs).
- High-Speed Motors and Drives: Spindles for PCB drilling and semiconductor manufacturing equipment.
- Medical Equipment: Dental handpieces and high-speed centrifuges.
