7022 CE/P4ATGA
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7022 CE/P4ATGA
Basic Information
System of measurement
Metric
Weight
6.25 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
84 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
30
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
22725 lbf
Radial static load rating
30150 lbf
Limiting speed
10 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
3
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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7022 CE/P4ATGA Bearing Product Overview & Core Advantages
The 7022 CE/P4ATGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, it offers superior dimensional and running accuracy. Its 15° contact angle and Universal Matchable (SU) design make it ideal for handling combined loads, particularly high-speed applications where precise axial and radial load capacity is critical. The bearing comes pre-lubricated and is characterized by its high limiting speed and excellent operational stability.
7022 CE/P4ATGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7022 | Basic bearing series, defining the standard dimensions: 110mm bore, 170mm OD, 84mm width. |
| CE | Indicates a 15° contact angle, optimized for high-speed operation and moderate axial load capacity. |
| P4A | Denotes a high-precision tolerance class with enhanced running accuracy and dimensional stability beyond standard P4 levels. |
| TGA | Specifies the cage material: a phenolic resin cage, which offers low weight, high strength, and excellent performance at high speeds. |
7022 CE/P4ATGA Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to P4A tolerance standards with tight dimensional tolerances on bore, OD, and width, ensuring minimal runout and superior system rigidity in precision assemblies.
- Optimized Load Capacity: The 15° contact angle and robust internal geometry provide excellent capacity for combined (radial and axial) loads, making it suitable for complex loading conditions.
- Superior High-Speed Performance: The lightweight and durable phenolic cage (TGA) reduces centrifugal forces, while the optimized internal design and lubrication contribute to a high limiting speed of 10,000 rpm.
- Universal Matching Capability (SU): This bearing is universally matchable, allowing multiple bearings to be mounted in a duplex set (back-to-back, face-to-face, or tandem) without selective matching, simplifying installation and achieving desired preload and stiffness.
- Premium Material Construction: Made from chrome steel for both rings and balls, ensuring high fatigue life and durability under demanding operating conditions.
7022 CE/P4ATGA Bearing Typical Application Areas
The 7022 CE/P4ATGA is engineered for high-performance applications in sectors requiring precision, speed, and reliability. Key industries and machinery include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes: Especially in high-output and robotic applications.
- High-Frequency Motors and Spindles: Used in CNC machining and PCB drilling.
- Aerospace & Defense Systems: Gyroscopes, radar equipment, and auxiliary power units.
- Medical Equipment: High-speed centrifuges and dental handpieces.
