S7017 ACD/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7017 ACD/HCP4ADT
Basic Information
System of measurement
Metric
Weight
1.52 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
85 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
130 mm
Outside diameter tolerance
-0.004mm to 0
Width
44 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
14.288 mm
Ball quantity
21
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
23400 lbf
Radial static load rating
27450 lbf
Limiting speed
17 X 1000 rpm
Lubrication
Grease
Matched arrangement
Duplex Tandem (DT)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
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S7017 ACD/HCP4ADT Bearing Product Overview & Core Advantages
The S7017 ACD/HCP4ADT is a precision duplex tandem angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This matched pair bearing set features a P4A super-precision tolerance class and is preloaded for immediate, high-stiffness performance. Its construction with a phenolic cage and ceramic balls enables superior high-speed capabilities, while the sealed design with grease lubrication ensures long-term, maintenance-free operation. This bearing is engineered to handle significant combined loads, making it ideal for high-precision spindles and other critical machinery.
S7017 ACD/HCP4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| ACD | Angular Contact, Duplex Tandem arrangement | Optimized for handling thrust loads in one direction; provides maximum axial rigidity. |
| HC | Hybrid Ceramic (Ceramic balls, steel rings) | Reduced friction, lower operating temperature, and extended service life, especially at high speeds. |
| P4A | Super Precision Tolerance Class (ABEC 7 / ISO P4) | Guarantees extremely tight dimensional and running accuracy for superior rotational performance. |
| DT | Duplex Tandem (Matched Set of 2 Bearings) | Bearings are supplied as a pre-matched set, ensuring optimal performance and simplified installation. |
S7017 ACD/HCP4ADT Bearing Structural Features & Performance Benefits
- High Rigidity & Preload: The duplex tandem arrangement and factory-applied preload create an exceptionally rigid bearing system, minimizing deflection under load for superior positional accuracy.
- Superior Load Capacity: Engineered to withstand high combined radial and axial loads. The 25° contact angle is optimized for efficient thrust load carrying capacity.
- Exceptional High-Speed Performance: The combination of a lightweight phenolic resin cage and low-density ceramic balls (Hybrid Ceramic) significantly reduces centrifugal forces, allowing for a high limiting speed of 17,000 rpm.
- Maintenance-Free & Long Life: The sealed design and pre-applied grease lubrication protect against contamination and provide reliable operation across a wide temperature range (-30°C to 110°C) without requiring re-lubrication.
S7017 ACD/HCP4ADT Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications where precision, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: High-accuracy robotic arms and joints.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instruments.
- High-Frequency Motors & Spindles: Motors for PCB drilling and other high-RPM applications.
