7022 FE/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7022 FE/HCP4ADT
Basic Information
System of measurement
Metric
Weight
3.86 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
110 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
170 mm
Outside diameter tolerance
-0.004mm to 0
Width
56 mm
Width tolerance
-0.2mm to 0
Contact angle
18 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
30
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
17122 lbf
Radial static load rating
19800 lbf
Limiting speed
10 X 1000 rpm
Lubrication
Lubricated
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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7022 FE/HCP4ADT Bearing Product Overview & Core Advantages
The 7022 FE/HCP4ADT is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This duplex tandem (DT) arrangement consists of two matched bearings preloaded against each other, delivering superior high rigidity and axial load capacity in one direction. Manufactured to P4A tolerance class, it ensures extremely tight dimensional and running accuracy. The use of ceramic balls and a phenolic cage contributes to its capabilities as a high-speed bearing with reduced weight and minimal heat generation, making it ideal for high-precision, high-reliability spindles and machinery.
7022 FE/HCP4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7022 | Standard bearing series designation, indicating bearing dimensions (110mm bore, 170mm OD, 56mm width). |
| FE | Indicates a duplex tandem (DT) arrangement, where two bearings are matched and preloaded to handle heavy thrust loads in one direction. |
| HC | Signifies the use of Hybrid Ceramic components (ceramic balls with steel rings). |
| P4A | Denotes an ultra-precision tolerance class, exceeding ABEC 7/ISO P4 standards for enhanced running accuracy. |
7022 FE/HCP4ADT Bearing Structural Features & Performance Benefits
- High Rigidity & Axial Load Capacity: The duplex tandem arrangement and preload create a highly rigid bearing system capable of supporting significant one-direction axial loads and moment loads, ensuring minimal deflection under operation.
- High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage allows for a high limiting speed of 10,000 rpm, minimizing friction and heat generation.
- Precision Operation: Manufactured to P4A tolerance class with a 18° contact angle, this bearing delivers exceptional running accuracy, low noise, and low vibration levels, which is critical for precision applications.
- Optimized for Performance: The open seal type is selected for applications where the bearing is integrated into a centralized lubrication system, minimizing torque for maximum high-speed efficiency.
7022 FE/HCP4ADT Bearing Typical Application Areas
This bearing is engineered for high-performance machinery where precision, speed, and rigidity are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Applications requiring the utmost in surface finish and dimensional accuracy.
- High-Frequency Motors: Spindles for PCB drilling and other high-RPM electric motors.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other critical rotating assemblies.
