S7020 CD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7020 CD/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
15 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
22
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
18720 lbf
Radial static load rating
19125 lbf
Limiting speed
8.5 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:
$ 1389.87
/ each
In Stock
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S7020 CD/P4A Bearing Product Overview & Core Advantages
The S7020 CD/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Operating under P4 (ABEC-7) tolerance class, it is designed to accommodate high combined loads, primarily thrust loads in one direction, while simultaneously handling radial loads. Its 15° contact angle and preload availability ensure high system stiffness and minimal deflection, making it ideal for demanding, high-speed machinery where positional accuracy is critical.
S7020 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance & Benefit |
|---|---|---|
| C | 15° Contact Angle | Optimized for high-speed operation and moderate thrust capacity. |
| D | High Load Capacity Design | Increased radial dynamic load rating for enhanced performance under heavy loads. |
| P4A | Tolerance Class (ABEC-7) | Guarantees precision dimensions and runout accuracy for superior performance in high-speed spindles. |
S7020 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The combination of a 15° contact angle and availability of preload provides high axial and radial stiffness, minimizing deflection under load for improved machining accuracy.
- Superior Load Capacity: The "D" designation indicates an optimized internal geometry, resulting in a high radial dynamic load rating of 18,720 lbf, enabling reliable operation under significant combined loads.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, contributing to a high limiting speed of 8,500 rpm. The standard lubrication is formulated for stable performance within this range.
- Durability and Reliability: Manufactured from chrome steel for both rings and balls, this bearing offers excellent wear resistance and long service life in demanding environments.
S7020 CD/P4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for applications requiring high speed, rigidity, and accuracy, including:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Gearboxes
- High-Frequency Motors and Spindles
- Medical and Dental Equipment
- Robotic Arm Joints and Drives
