7020 ACD/HCP4ADGC
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7020 ACD/HCP4ADGC
Basic Information
System of measurement
Metric
Weight
2.09 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
100 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
150 mm
Outside diameter tolerance
-0.004mm to 0
Width
48 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
22
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
28575 lbf
Radial static load rating
36000 lbf
Limiting speed
21 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Moderate / Class C
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 840.81
/ each
In Stock
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7020 ACD/HCP4ADGC Bearing Product Overview & Core Advantages
The 7020 ACD/HCP4ADGC is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This universally matchable (SU) bearing features a 25° contact angle and moderate preload (Class C), enabling it to handle combined radial and axial loads simultaneously with high reliability. Its construction with a phenolic cage and ceramic balls contributes to superior high-speed performance, low heat generation, and extended service life in precision machinery.
7020 ACD/HCP4ADGC Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle. |
| HC | Hybrid Ceramic, indicating the use of ceramic balls for enhanced speed and durability. |
| P4A | High precision tolerance class, ensuring extremely tight dimensional and running accuracy. |
| DGC | Likely refers to a specific internal design or grouping code for universal matching (SU). |
7020 ACD/HCP4ADGC Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The angular contact design and moderate preload provide high system rigidity, effectively supporting combined loads and moment loads in high-precision applications.
- Superior High-Speed Performance: The combination of a lightweight phenolic cage and low-density ceramic balls reduces centrifugal forces, allowing for a high limiting speed of 21,000 rpm with minimal friction and heat generation.
- Extended Service Life: Hybrid ceramic construction offers superior wear resistance and operational life, especially in challenging environments. The open seal type allows for effective re-lubrication in service.
- Precision Engineering: Manufactured to P4A tolerance class with tight bore, outside diameter, and width tolerances, ensuring predictable performance and ease of installation in precision assemblies.
7020 ACD/HCP4ADGC Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications where speed, precision, and rigidity are critical. Key industries and equipment include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Aerospace Control Systems
- Medical and Dental Equipment
