7017 ACB/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7017 ACB/HCP4A
Basic Information
System of measurement
Metric
Weight
0.9 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
85 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
130 mm
Outside diameter tolerance
-0.009mm to 0
Width
22 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
28
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
5648 lbf
Radial static load rating
5040 lbf
Limiting speed
22 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
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
Price:
$ 818.77
/ each
In Stock
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Product Overview and Core Advantages
The 7017 ACB/HCP4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and speed capabilities. This bearing is distinguished by its P4 (ABEC-7) tolerance class, ceramic ball material, and availability with preload, making it an ideal solution for machine tool spindles and other demanding equipment where high rigidity and minimal runout are critical. Its design is optimized to support combined loads, efficiently carrying significant radial loads and thrust loads in one direction simultaneously.
7017 ACB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7017 | Standard bearing series number, indicating a metric bearing with an 85 mm bore, 130 mm outside diameter, and 22 mm width. |
| ACB | Angular Contact Bearing with a 25° contact angle. |
| H | Indicates the use of ceramic (hybrid) balls, which reduce centrifugal forces, lower operating temperatures, and enable higher speeds. |
| C | Refers to the phenolic resin cage, which is lightweight and offers excellent performance in high-speed applications. |
| P4 | Denotes the P4 tolerance class (ABEC-7), signifying extremely tight dimensional and running accuracy for superior performance. |
| A | Specifies that the bearing is available with preload for increased system rigidity and precise shaft positioning. |
Structural Features and Performance Benefits
- Hybrid Ceramic Design: The combination of chrome steel rings and ceramic balls significantly reduces friction and heat generation. This results in a higher limiting speed (22,000 rpm) and extended service life compared to all-steel bearings.
- High Rigidity and Load Capacity: The 25° contact angle and robust construction provide excellent resistance to combined loads, with a dynamic load rating of 5648 lbf and a static load rating of 5040 lbf, ensuring stable operation under demanding conditions.
- Precision and Stability: Manufactured to P4 (ABEC-7) tolerance standards, this bearing guarantees minimal vibration and runout, which is crucial for applications requiring high rotational accuracy.
- Optimized High-Speed Performance: The lightweight phenolic cage maintains ball alignment and stability at very high rotational speeds, contributing to the bearing's overall high-speed capability.
7017 ACB/HCP4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for high-performance machinery, including:
- Machine Tool Spindles (CNC machining centers, grinding spindles)
- High-Speed Motors and Spindles
- Precision Robotics and Automation Equipment
- Aerospace and Defense Instrumentation
- Medical Equipment such as high-speed dental handpieces and imaging devices
