S7020 CD/P4ADGB
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7020 CD/P4ADGB
Basic Information
System of measurement
Metric
Weight
2.55 kg
Tolerance class
P4A
Seal type
Sealed
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
15 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
22
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
30375 lbf
Radial static load rating
38250 lbf
Limiting speed
10 X 1000 rpm
Lubrication
Grease
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
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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S7020 CD/P4ADGB Bearing Product Overview & Core Advantages
The S7020 CD/P4ADGB is a high-precision double row angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. Engineered to accommodate combined radial and axial loads simultaneously from both directions, this bearing features a universal matchable (SU) design that simplifies installation and ensures optimal performance in preloaded arrangements. Its P4A tolerance class guarantees ultra-precise dimensions and running accuracy, making it ideal for high-speed spindles and other precision machinery where reliability is paramount.
S7020 CD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance |
|---|---|---|
| CD | 15° Contact Angle & High-Precision Design | Optimized for high-speed operation and axial load capacity. |
| P4A | Tolerance Class (Equivalent to ABEC 7) | Ensures extremely tight dimensional and running accuracy for precision applications. |
| DGB | Universal Matchable (SU) & Light Preload (Class B) | Bearings are supplied as a pre-matched pair, ready for installation to provide immediate high rigidity and simplified mounting. |
S7020 CD/P4ADGB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact design and light preload (Class B) create a highly rigid bearing system capable of handling significant combined loads. The 15° contact angle is optimized for supporting substantial axial loads in both directions.
- Precision & Speed: Manufactured to P4A tolerance class with a phenolic cage, this bearing achieves superior running accuracy and stability, contributing to its high limiting speed of 10,000 rpm.
- Sealed & Lubricated for Life: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is designed for long-term, maintenance-free operation within its specified temperature range.
- Optimized Internal Geometry: With 22 precision balls and a carefully calculated contact angle, the bearing delivers smooth operation, low vibration, and extended service life.
S7020 CD/P4ADGB Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Applications demanding the utmost in rotational accuracy.
- High-Frequency Motors: Where high speeds and precise shaft positioning are critical.
- Industrial Pumps and Compressors: For reliable operation under combined loads.
