7017 ACEGA/HCP4AH1
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7017 ACEGA/HCP4AH1
Basic Information
System of measurement
Metric
Weight
0.81 kg
Tolerance class
P4A
Seal type
Open
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
22 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
26
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
7312 lbf
Radial static load rating
6300 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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7017 ACEGA/HCP4AH1 Bearing Product Overview & Core Advantages
The 7017 ACEGA/HCP4AH1 is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered with a 25° contact angle and manufactured to P4A tolerance class, this bearing is optimized to handle combined radial and axial loads simultaneously. Its construction with a phenolic cage and ceramic balls enables superior high-speed capabilities and reduced rotational inertia. The bearing is universally matchable (SU), allowing for precise preload configuration when paired, making it an ideal solution for high-rigidity, high-reliability spindle arrangements.
7017 ACEGA/HCP4AH1 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle. |
| EGA | Specifies the internal radial clearance and preload category (Extra light / Class A). |
| HC | Hybrid Ceramic construction, indicating ceramic balls. |
| P4A | Denotes a high precision tolerance class superior to ABEC 7, ensuring minimal runout and vibration. |
| H1 | Indicates the bearing is pre-lubricated. |
7017 ACEGA/HCP4AH1 Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4A tolerance class with extremely tight dimensional tolerances on the bore diameter (85 mm), outside diameter (130 mm), and width (22 mm), providing stable and accurate rotational performance.
- Superior High-Speed Performance: The combination of a lightweight phenolic cage and low-density ceramic balls significantly reduces centrifugal forces, allowing for a high limiting speed of 28,000 rpm.
- Enhanced Load Capacity: The 25° contact angle is optimally designed to handle significant combined loads, with a dynamic load rating of 7312 lbf and a static load rating of 6300 lbf.
- Reduced Friction and Wear: Ceramic ball material offers excellent hardness and smoothness, leading to lower operating temperatures and extended service life, especially in high-speed applications.
- Universal Matching: Designated as Universal Matchable (SU), these bearings can be mounted in pairs (as a set of 2) in various configurations (back-to-back, face-to-face, or tandem) to achieve specific preload and stiffness requirements.
7017 ACEGA/HCP4AH1 Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC milling machines.
- Precision Instrumentation: High-frequency spindles for PCB drilling and semiconductor manufacturing equipment.
- High-Speed Motors and Drives: Servo motors, turbochargers, and other applications demanding low inertia and high rotational accuracy.
- Aerospace and Defense Systems: Gyroscopes, radar systems, and other critical components requiring reliability at high speeds.
