7017 ACE/HCP4AQBCB
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7017 ACE/HCP4AQBCB
Basic Information
System of measurement
Metric
Weight
3.24 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
88 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
19598 lbf
Radial static load rating
25200 lbf
Limiting speed
17 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Quadruplex Back-to-Back (QBC)
Number of bearings in matched set
4
Universal matching bearing
No (Standard)
Preload
Light / Class B
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
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7017 ACE/HCP4AQBCB Bearing Product Overview & Core Advantages
The 7017 ACE/HCP4AQBCB is a high-precision quadruplex matched angular contact ball bearing designed for applications demanding exceptional rigidity and accuracy. This ceramic hybrid bearing features a back-to-back quadruplex arrangement, providing superior stiffness and the ability to handle significant combined loads (radial and axial). With its P4A tolerance class and phenolic cage, it is engineered for high-speed operation and reliable performance in demanding machinery.
7017 ACE/HCP4AQBCB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACE | Standard 25° contact angle, light preload (Class B) |
| HC | Hybrid Ceramic (Silicon Nitride balls) |
| P4A | High Precision Tolerance Class |
| QBC | Quadruplex Back-to-Back Matched Set |
7017 ACE/HCP4AQBCB Bearing Structural Features & Performance Benefits
- Exceptional Rigidity: The quadruplex back-to-back (QBC) arrangement creates a highly rigid bearing system, minimizing deflection under heavy combined loads and complex moment loads.
- Superior Load Capacity: Engineered to handle high radial and axial loads simultaneously, thanks to the 25° contact angle and optimized internal geometry.
- High-Speed Performance: The combination of a lightweight phenolic cage and low-density ceramic balls reduces centrifugal forces, enabling a high limiting speed of 17,000 rpm.
- Reduced Heat Generation: Ceramic balls have a lower coefficient of thermal expansion than steel, contributing to more stable preload and thermal performance at high speeds.
- Precision & Accuracy: Manufactured to P4A tolerance class with precise bearing dimensions (85mm bore, 130mm OD) for exacting applications.
7017 ACE/HCP4AQBCB Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance machinery where maximum rigidity and speed are critical. Key applications include:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Grinding Spindles
- High-Frequency Machining Centers
- Advanced Robotics and Automation
- Aerospace Test Equipment
