S7020 ACD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7020 ACD/P4A
Basic Information
System of measurement
Metric
Weight
1.27 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
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
8 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1159.1
/ each
In Stock
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S7020 ACD/P4A Bearing Product Overview & Core Advantages
The S7020 ACD/P4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional rotational accuracy and rigidity. As a single-row bearing with a 25° contact angle and P4 (ABEC-7) tolerance class, it is optimized to handle combined radial and axial loads simultaneously. Its preload availability ensures minimal axial and radial play, resulting in superior running accuracy and system rigidity, making it an ideal choice for high-speed spindles and precision machinery.
S7020 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7020 | Basic bearing series designation, indicating a 100mm bore, 150mm OD, and 24mm width. |
| AC | Angular Contact design with a 25° contact angle. |
| D | Indicates a high-precision, duplex arrangement capability (though supplied as a single bearing). |
| P4A | Specifies the P4 (ABEC-7) tolerance class for exceptional dimensional and running accuracy. |
S7020 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: Manufactured to P4 tolerance class with a phenolic resin cage, this bearing offers outstanding dimensional stability and minimal vibration, crucial for high-speed, high-precision applications.
- Superior Load Capacity: The 25° contact angle and robust construction, featuring chrome steel rings and balls, provide excellent capacity for combined radial and axial loads.
- Optimized High-Speed Performance: The lightweight phenolic cage and precision-ground components contribute to a high limiting speed of 8,000 rpm, reducing centrifugal forces and operational temperatures.
- Sealed & Lubricated for Life: As a sealed and pre-lubricated unit, it is protected from contamination and is ready for immediate installation, offering long-term, maintenance-free operation within its specified temperature range.
S7020 ACD/P4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery where precision and speed are critical. Key applications include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Advanced Robotics and Automation Equipment
