7022 FE/HCP4AH1DT
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7022 FE/HCP4AH1DT
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/HCP4AH1DT Bearing Product Overview & Core Advantages
The 7022 FE/HCP4AH1DT is a precision angular contact ball bearing supplied as a duplex tandem (DT) matched set. Engineered for the highest levels of accuracy and performance, this bearing is characterized by its P4A super-precision tolerance, ceramic ball construction, and availability with preload. Its fundamental design enables it to accommodate high combined loads, particularly excelling in handling thrust loads in a single direction, making it an ideal solution for high-speed and high-rigidity applications where uncompromising precision is required.
7022 FE/HCP4AH1DT Bearing Model Code Explained, Specifications & Naming Convention
The model number 7022 FE/HCP4AH1DT is decoded as follows:
- 7022: Basic series designation, indicating a 110 mm bore and 170 mm outside diameter.
- FE: Indicates the bearing is supplied with a preload.
- HC: Signifies the use of Hybrid Ceramic balls (Silicon Nitride).
- P4A: Denotes a super-precision tolerance class exceeding ABEC 7/ISO P4 standards.
- H1: Specifies a contact angle of 18°.
- DT: Identifies the bearing as part of a Duplex Tandem matched set of 2 bearings.
7022 FE/HCP4AH1DT 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 allows for higher limiting speeds (10,000 rpm), reduced lubrication demands, and extended service life, especially in demanding environments.
- Super-Precision P4A Tolerance: Manufactured to the tightest dimensional and running accuracy standards, ensuring minimal runout and vibration for exceptional rotational precision in high-speed spindles.
- Phenolic Resin Cage: The lightweight and robust phenolic cage provides excellent dimensional stability and low friction at high speeds, contributing to smooth operation and high acceleration capabilities.
- Duplex Tandem (DT) Matched Set: Two bearings are factory-matched and mounted in a tandem arrangement to maximize axial load capacity in one direction. This configuration provides superior stiffness and positional accuracy for the shaft.
- Preload (FE): Supplied with a pre-applied axial preload, which eliminates internal clearance. This enhances system rigidity, improves rotational accuracy, and raises the natural frequency of the assembly, critical for high-performance machining and precision equipment.
7022 FE/HCP4AH1DT Bearing Typical Application Areas
This high-performance bearing is specifically designed for the most demanding applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Aerospace & Defense Systems: Gyroscopes, radar platforms, and navigation systems.
- High-Frequency Motors and Spindles for the semiconductor and electronics industry.
