7017 ACEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7017 ACEGA/HCP4A
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
No drawings available at the moment, will be launched soon
Price:
$ 354.66
/ each
In Stock
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7017 ACEGA/HCP4A Bearing Product Overview & Core Advantages
The 7017 ACEGA/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. Designed as a universally matchable (SU) single bearing, it is intended to be mounted in pairs to form a duplex arrangement capable of supporting combined loads. Its core advantages stem from a P4A super-precision tolerance class, a ceramic ball construction, and an extra light preload (Class A), making it ideal for high-speed spindles and other machinery where high rigidity and minimal rotational error are critical.
7017 ACEGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7017 | Basic bearing series; 85 mm bore, 130 mm OD, 22 mm width. |
| AC | Angular Contact design with a 25° contact angle. |
| EGA | Optimized internal geometry and Phenolic (resin) cage for high-speed operation. |
| HC | Hybrid Ceramic: Signifies the use of ceramic balls with steel rings. |
| P4A | Super Precision tolerance class, exceeding ABEC 7/ISO P4 standards. |
7017 ACEGA/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction, heat generation, and wear. This enables higher limiting speeds, extended service life, and improved reliability in high-speed applications.
- Phenolic Resin Cage: The lightweight and robust phenolic cage contributes to excellent high-speed performance and stability, accommodating the high limiting speed of 28,000 rpm.
- Universal Matchable (SU) Design: This feature allows any two 7017 ACEGA/HCP4A bearings to be mounted together in a duplex set (back-to-back, face-to-face, or tandem) without selective matching, simplifying installation and ensuring optimal preload and high rigidity.
- Super-Precision P4A Tolerances: Extremely tight dimensional and running accuracy (bore and OD tolerance: -0.004mm to 0) ensure minimal runout and vibration, which is essential for ultra-precise machining and positioning systems.
- High Load Capacity: With a dynamic load rating of 7312 lbf and a static load rating of 6300 lbf, this bearing is capable of handling significant combined radial and axial loads.
7017 ACEGA/HCP4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance machinery, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instrumentation: Measuring and testing equipment requiring extreme accuracy.
- High-Frequency Motors and Spindles: Where low inertia and high rotational accuracy are paramount.
- Aerospace and Defense Systems: Gyroscopes, radar equipment, and other critical rotating assemblies.
