S7020 ACE/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7020 ACE/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
25 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
27
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
9518 lbf
Radial static load rating
8550 lbf
Limiting speed
11.2 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:
$ 1389.95
/ each
In Stock
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S7020 ACE/P4A Bearing Product Overview & Core Advantages
The S7020 ACE/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. Engineered to simultaneously handle combined radial and axial loads, this bearing features a phenolic cage and comes pre-lubricated for immediate operation. Its P4 (ABEC-7) tolerance class ensures superior running accuracy, making it ideal for high-speed spindles and other precision machinery where high rigidity and minimal runout are critical.
S7020 ACE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| ACE | 25° Contact Angle, Phenolic Cage, High Precision | Optimized for high-speed operation and high rigidity. |
| P4A | P4 (ABEC-7) Tolerance Class | Guarantees exceptional dimensional accuracy and smooth, precise rotation. |
S7020 ACE/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The 25° contact angle and robust construction enable the bearing to effectively support significant combined loads, providing stable and rigid support for shafts.
- High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, allowing for a high limiting speed of 11,200 rpm. This makes it a true high-speed bearing.
- Precision Engineering: Manufactured to P4 tolerance standards with a bore diameter tolerance of -0.008mm to 0, ensuring minimal vibration and superior performance in precision applications.
- Sealed & Lubricated for Life: As a sealed bearing that is pre-lubricated, it is protected from contamination and is designed for long-term, maintenance-free operation within its specified temperature range.
S7020 ACE/P4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Equipment
- Industrial Pumps and Compressors
- Medical and Laboratory Instrumentation
