S7020 CE/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7020 CE/P4A
Basic Information
System of measurement
Metric
Weight
1.32 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
12.7 mm
Ball quantity
27
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
10102 lbf
Radial static load rating
9000 lbf
Limiting speed
12.3 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:
$ 1390.26
/ each
In Stock
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S7020 CE/P4A Bearing Product Overview & Core Advantages
The S7020 CE/P4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional rotational accuracy and rigidity. As a single-row bearing, it is designed to accommodate high combined loads—significant radial loads alongside substantial unidirectional axial loads. Its P4 (ABEC-7) tolerance class ensures superior running accuracy, making it ideal for high-speed spindles and precision machinery. The bearing comes preloaded and lubricated from the factory, simplifying installation and ensuring immediate, reliable performance.
S7020 CE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| S7020 | Basic bearing designation, indicating a 100mm bore, 150mm OD, and 24mm width. |
| C | Denotes a 15° contact angle, optimized for high-speed operation and high axial load capacity. |
| E | Indicates an optimized internal design, often featuring a larger ball complement and reinforced structure for increased load rating. |
| P4A | Specifies the tolerance class P4 (ABEC-7) and that the bearing is supplied with a specific preload for immediate high-rigidity performance. |
S7020 CE/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4 tolerance with a phenolic resin cage, this bearing offers minimal runout and stable operation, which is critical for machining accuracy.
- Superior Load Capacity: The 15° contact angle and optimized internal geometry enable it to handle high combined loads effectively, providing robust support in challenging conditions.
- Optimized High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, contributing to a high limiting speed of 12,300 rpm. The standard factory lubrication is formulated for stable performance across the operating temperature range.
- Sealed and Pre-Lubricated: As a sealed bearing, it is protected from contamination. Being pre-lubricated and preloaded, it is a ready-to-install unit that reduces maintenance requirements.
S7020 CE/P4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications where precision and speed are paramount. Key industries and equipment include:
- Machine Tool Spindles: For CNC machining centers, grinding spindles, and milling heads.
- High-Frequency Motors and Spindles: Used in applications requiring very high rotational speeds.
- Precision Robotics: In critical joints and arm assemblies demanding high accuracy and rigidity.
- Aerospace and Defense Systems: In gyroscopes, radar equipment, and other precision instruments.
