S7020 CD/P4AQGB
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7020 CD/P4AQGB
Basic Information
System of measurement
Metric
Weight
5.09 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
96 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
49725 lbf
Radial static load rating
76500 lbf
Limiting speed
10 X 1000 rpm
Lubrication
Grease
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
4
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/P4AQGB Bearing Product Overview & Core Advantages
The S7020 CD/P4AQGB is a precision double row angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and rigidity. Operating under P4A tolerance class, it is designed to simultaneously handle significant combined loads (radial and bidirectional axial loads) with high stability. Its compact design, featuring a universal matchable (SU) configuration, allows for flexible mounting in preloaded sets to achieve optimal system stiffness and running accuracy, making it ideal for high-speed and high-reliability machinery.
S7020 CD/P4AQGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7020 | Basic bearing designation (Double Row Angular Contact Ball Bearing, 100mm bore, 150mm OD). |
| CD | Specific internal design and contact angle (15°). |
| P4A | High precision tolerance class, exceeding ABEC 7/ISO P4, with restricted runout tolerances. |
| QGB | Indicates a set of four bearings, supplied as a universal matchable (SU) set with light preload (Class B). |
S7020 CD/P4AQGB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design and 15° contact angle provide superior high rigidity and enable the bearing to support substantial combined loads and moment loads effectively.
- Precision & High-Speed Performance: Manufactured to a P4A tolerance class and featuring a lightweight, robust phenolic cage, this bearing ensures smooth operation and low vibration at high rotational speeds, with a limiting speed of 10,000 rpm.
- Optimized for Matched Sets: The Universal Matchable (SU) designation means bearings can be mounted in any combination (back-to-back, face-to-face, or tandem) without pre-selection, simplifying installation and ensuring consistent high rigidity and performance in the set.
- Sealed & Pre-Lubricated: As a sealed bearing pre-lubricated with grease, it is protected from contamination and offers long-term, maintenance-free operation within its specified temperature range.
S7020 CD/P4AQGB Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications requiring precision and speed, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotic Arm Joints and Precision Gearboxes
