7222 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7222 ACD/HCP4A
Basic Information
System of measurement
Metric
Weight
3.86 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
110 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
200 mm
Outside diameter tolerance
-0.011mm to 0
Width
38 mm
Width tolerance
-0.24mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
26.988 mm
Ball quantity
16
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
37800 lbf
Radial static load rating
36000 lbf
Limiting speed
12 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
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
Price:
$ 1580.5
/ each
In Stock
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7222 ACD/HCP4A Bearing Product Overview & Core Advantages
The 7222 ACD/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional rotational accuracy and rigidity. Designed to accommodate combined loads (radial and axial loads simultaneously), this single-row bearing features a 25° contact angle for optimal axial load capacity. Its ceramic balls and P4 (ABEC-7) tolerance class ensure superior high-speed performance, reduced friction, and extended service life, making it an ideal solution for high-reliability, precision machinery.
7222 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance |
|---|---|---|
| ACD | Angular Contact, High Precision | Denotes a 25° contact angle design optimized for high axial rigidity and precision. |
| HC | Hybrid Ceramic | Indicates the use of ceramic balls, which reduce weight, friction, and heat generation, enabling higher speeds. |
| P4A | Precision Tolerance Class (P4/ABEC-7) | Specifies ultra-precise bearing dimensions and running accuracy for applications requiring minimal runout and vibration. |
7222 ACD/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces and friction, resulting in lower operating temperatures and a limiting speed of 12,000 rpm. This makes it a premier high-speed bearing.
- High Rigidity & Load Capacity: The 25° contact angle and robust internal geometry provide high axial and radial stiffness, effectively handling combined loads.
- Precision & Stability: Manufactured to P4 tolerance and featuring a lightweight phenolic cage, this bearing ensures smooth, stable operation with minimal vibration, which is critical for precision applications.
- Pre-Lubricated & Ready-to-Install: The bearing comes lubricated from the factory, simplifying installation and providing immediate operational readiness.
7222 ACD/HCP4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance machinery, including:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers requiring extreme accuracy and rigidity.
- High-Speed Motors and Spindles: Used in applications where rotational precision and thermal stability are paramount.
- Aerospace & Defense Systems: Including gyroscopes, navigation systems, and auxiliary power units.
- Precision Medical Equipment: Such as dental handpieces and high-speed centrifuges.
