7020 ACD/P4AQGA
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7020 ACD/P4AQGA
Basic Information
System of measurement
Metric
Weight
5.05 kg
Tolerance class
P4A
Seal type
Open
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
25 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
22
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
46800 lbf
Radial static load rating
72000 lbf
Limiting speed
16 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
4
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
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:
$ 599.29
/ each
In Stock
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7020 ACD/P4AQGA Bearing Product Overview & Core Advantages
The 7020 ACD/P4AQGA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. As part of a universally matchable (SU) set of 4, it is engineered to accommodate combined loads—significant radial and axial loads in one direction. Its P4A tolerance class and extra light preload (Class A) ensure smooth, precise operation, making it ideal for high-performance, high-reliability systems where rotational accuracy is paramount.
7020 ACD/P4AQGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle. |
| P4A | Indicates a high-precision tolerance class, superior to ABEC-7/ISO P4 standards. |
| QGA | Specifies the universal matchable (SU) arrangement and preload group (Extra Light / Class A). |
7020 ACD/P4AQGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and 25° contact angle provide high rigidity and enable the bearing to handle significant combined radial and axial loads.
- Precision Performance: Manufactured to P4A tolerance class with tight dimensional control (bore and OD tolerance: -0.004mm to 0), ensuring minimal runout and vibration for smooth operation.
- Optimized High-Speed Operation: The lightweight phenolic cage reduces centrifugal forces, contributing to a high limiting speed of 16,000 rpm. The bearing comes pre-lubricated for immediate use and optimal performance within its specified range.
- Universal Matchability (SU): Bearings are universally matchable, allowing for flexible mounting in pairs or sets (in this case, a set of 4) to support complex load configurations without selective assembly.
7020 ACD/P4AQGA Bearing Typical Application Areas
This high-precision bearing is ideally suited for demanding applications, including:
- Machine Tool Spindles
- High-Speed Precision Drives
- Industrial Pumps and Compressors
- Robotic Arm Joints and Precision Gearboxes
