7020 ACDTP/HCP4B
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7020 ACDTP/HCP4B
Basic Information
System of measurement
Metric
Weight
1.05 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
100 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
150 mm
Outside diameter tolerance
-0.009mm to 0
Width
24 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° to 110 °C
Radial dynamic load rating
17842 lbf
Radial static load rating
18000 lbf
Limiting speed
9.5 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:
$ 1158.98
/ each
In Stock
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7020 ACDTP/HCP4B Bearing Product Overview & Core Advantages
The 7020 ACDTP/HCP4B is a single-row angular contact ball bearing engineered for applications demanding ultra-high precision and superior rigidity. Its design is optimized to support high combined loads—significant radial and one-directional axial loads—simultaneously. Featuring a P4 (ABEC-7) tolerance class and a 25° contact angle, this bearing delivers exceptional running accuracy and is ideally suited for high-speed spindles and other precision machinery requiring maximum performance and reliability.
7020 ACDTP/HCP4B Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance & Benefit |
|---|---|---|
| AC | Angular Contact | Designed to handle combined radial and axial loads. |
| DTP | Preload (Specific Grade) | Provides high rigidity and reduces axial/radial runout for enhanced precision. |
| HC | Hybrid Ceramic (Ceramic Balls) | Enables higher limiting speeds, reduced friction, and longer service life. |
| P4B | High Precision Tolerance (ABEC-7) | Guarantees tight dimensional and running accuracy for demanding applications. |
7020 ACDTP/HCP4B Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The use of ceramic balls with a steel ring significantly reduces centrifugal forces, lowers operating temperatures, and allows for a higher limiting speed of 9,500 rpm. This construction also offers improved resistance to wear and electrical arcing.
- Phenolic Resin Cage: The lightweight and robust phenolic cage ensures stable operation at high speeds, provides excellent guidance for the rolling elements, and is suitable for the specified temperature range.
- High Rigidity & Preload: The bearing is supplied with a specific preload (DTP), which minimizes deflection under load. This results in superior system stiffness, critical for maintaining precision in machining and positioning applications.
- Superior Load Capacity: With a dynamic load rating of 17,842 lbf and a static load rating of 18,000 lbf, this bearing reliably handles significant combined loads.
- Precision Ground: Manufactured to P4 tolerance, the bearing ensures minimal vibration and high rotational accuracy for smooth, reliable performance.
7020 ACDTP/HCP4B Bearing Typical Application Areas
This high-precision angular contact bearing is ideally deployed in:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and rotary actuators requiring high rigidity and accuracy.
- High-Frequency Motors and Spindles: Where high rotational speeds and low friction are paramount.
- Medical and Laboratory Equipment: Centrifuges and precision scanners.
- Aerospace & Defense Systems: Guidance systems and instrumentation.
