7022 ACEGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7022 ACEGA/P4A
Basic Information
System of measurement
Metric
Weight
2.08 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
28 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
30
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
10102 lbf
Radial static load rating
9562 lbf
Limiting speed
16.25 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
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
No drawings available at the moment, will be launched soon
In Stock
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7022 ACEGA/P4A Bearing Product Overview & Core Advantages
The 7022 ACEGA/P4A is a single-row angular contact ball bearing engineered for applications demanding ultra-high precision and superior performance under combined loads. Positioned in the P4A tolerance class, it guarantees exceptional dimensional and running accuracy. Its 25° contact angle is optimized to efficiently support significant axial loads in one direction alongside radial loads. Manufactured with phenolic cage and pre-lubricated, this bearing is designed for high-speed operation up to 16,250 rpm, making it an ideal choice for high-reliability, precision machinery.
7022 ACEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance & Advantage |
|---|---|---|
| A | Extra Light Preload | Indicates a specific, minimal preload applied during manufacturing. This reduces initial running noise and vibration, enhancing operational smoothness and positioning accuracy. |
| CEGA | Universal Matching Designation | Signifies that the bearing is part of a universally matchable (SU) set. This allows for flexible mounting arrangements (e.g., back-to-back, face-to-face) to achieve desired stiffness and load-carrying capacity. |
| P4A | Tolerance Class | Denotes a very high precision grade with extremely tight tolerances on bore, outside diameter, and width. This ensures superior running accuracy, reduced vibration, and is critical for high-speed, high-precision applications. |
7022 ACEGA/P4A Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: The P4A tolerance class and extra light preload (A) provide exceptional running accuracy and system rigidity, minimizing deflection under load for superior machining or operational results.
- Optimized Load Capacity: With a 25° contact angle, this bearing is specifically designed to handle high axial loads in one direction in combination with radial loads. The dynamic load rating of 10,102 lbf and static rating of 9,562 lbf confirm its robust performance.
- Superior High-Speed Performance: The lightweight phenolic resin cage offers excellent strength-to-weight ratio and operates smoothly with minimal friction at high speeds, directly contributing to the high limiting speed of 16,250 rpm.
- Universal Matchability: As a universally matchable (SU) bearing, it can be paired with other identical bearings in sets (typically 3) to create a pre-loaded, rigid bearing system tailored to specific application requirements for optimal performance.
7022 ACEGA/P4A Bearing Typical Application Areas
The 7022 ACEGA/P4A is ideally suited for high-performance machinery where precision, speed, and reliability are paramount. Key application areas include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes: Especially in high-speed transmission systems.
- Industrial Pumps & Compressors: For efficient handling of axial and radial forces.
- Aerospace & Defense Systems: Actuators, control surface mechanisms, and auxiliary power units.
- Medical Equipment: High-speed dental handpieces and imaging device rotors.
