7020 ACE/P4A
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7020 ACE/P4A
Basic Information
System of measurement
Metric
Weight
1.26 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
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
17.5 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:
$ 1159.09
/ each
In Stock
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7020 ACE/P4A Bearing Product Overview & Core Advantages
The 7020 ACE/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4 (ABEC-7) tolerance class, this bearing is preloaded and optimized to handle significant combined loads (radial and axial) simultaneously. Its 25° contact angle provides superior axial load capacity and high rigidity, making it ideal for machine tool spindles and other demanding equipment where precision and reliability are paramount.
7020 ACE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACE | Indicates a 25° contact angle and a specific internal design optimized for high-speed performance and preload. |
| P4A | Denotes the P4 (ABEC-7) tolerance class, ensuring extremely tight dimensional and running accuracy for precision applications. |
7020 ACE/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The 25° contact angle and phenolic cage design provide excellent resistance to combined radial and axial loads, ensuring stable operation under demanding conditions.
- Precision Performance: Manufactured to P4 tolerance standards with precise bore, outer diameter, and width tolerances, guaranteeing minimal runout and superior rotational accuracy.
- High-Speed Capability: The lightweight phenolic resin cage and optimized internal geometry contribute to a high limiting speed of 17,500 rpm, suitable for high-speed spindles.
- Preload & Stability: The bearing is supplied with preload, which increases system stiffness, reduces vibration, and improves positioning accuracy in the assembled application.
7020 ACE/P4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for:
- Machine Tool Spindles (milling, grinding, and turning centers)
- High-Speed Machining Centers
- Precision Gearboxes
- Industrial Pumps and Compressors
- Robotics and Automation Equipment
