7017 ACD/P4ADGA
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7017 ACD/P4ADGA Bearing Product Overview & Core Advantages
The 7017 ACD/P4ADGA is a precision angular contact ball bearing designed for high-performance applications. As a universal matchable (SU) bearing, it can be mounted in tandem, face-to-face, or back-to-back arrangements to achieve optimal stiffness and load distribution. Its P4A tolerance class ensures exceptional dimensional and running accuracy, making it ideal for machine tool spindles and other high-precision machinery. The bearing is pre-lubricated for immediate operation and features an extra light preload (Class A), which minimizes friction and heat generation while maintaining precise shaft positioning under high-speed conditions.
7017 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| AC | Angular Contact | Optimized for combined radial and axial loads |
| D | High Contact Angle (25°) | Superior axial load capacity and rigidity |
| P4A | High Precision Tolerance Class | Exceptional running accuracy and dimensional stability |
| GA | Universal Matchable (SU) | Flexible mounting options for optimized system performance |
7017 ACD/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The 25° contact angle and optimized internal geometry enable the bearing to handle significant combined radial and axial loads simultaneously. When used in matched pairs, the system provides exceptional stiffness for precise shaft guidance.
- High-Speed Performance: The phenolic resin cage offers excellent strength-to-weight ratio and smooth operation at the limiting speed of 17,000 rpm. The open design facilitates efficient lubrication and heat dissipation.
- Precision Engineering: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for applications requiring high rotational accuracy.
- Material Quality: Both rings and balls are made from high-grade chrome steel, providing high hardness, wear resistance, and long service life under demanding conditions.
7017 ACD/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers
- High-Speed Machining Centers: Where superior rigidity and accuracy are paramount
- Precision Instrumentation: Measuring devices and laboratory equipment
- Robotics: High-accuracy rotary joints and arm assemblies
- Medical Equipment: Dental handpieces and imaging system rotors
