7020 CD/P4AQGC
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7020 CD/P4AQGC
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
15 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
22
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
49725 lbf
Radial static load rating
76500 lbf
Limiting speed
20 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
4
Universal matching bearing
Universal Matchable (SU)
Preload
Moderate / Class C
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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7020 CD/P4AQGC Bearing Product Overview & Core Advantages
The 7020 CD/P4AQGC is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Operating under the stringent P4A tolerance class, this bearing is engineered to handle combined loads—significant radial loads alongside axial loads in one direction. Its Universal Matchable (SU) designation allows for flexible mounting in sets to achieve optimal preload and system stiffness. The combination of a phenolic cage, moderate preload (Class C), and high-quality materials makes it an ideal solution for high-speed, high-reliability machinery.
7020 CD/P4AQGC Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | A 15° contact angle and specific internal design optimized for high-speed operation and universal matching. |
| P4A | Indicates a super-precision tolerance class with even tighter running accuracy specifications than standard P4. |
| QGC | Specifies a Moderate Preload (Class C) applied to the bearing, enhancing system rigidity and reducing deflection under load. |
7020 CD/P4AQGC Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4A tolerance class with a moderate preload, this bearing provides exceptional running accuracy and stiffness, minimizing shaft deflection and vibration in demanding applications.
- Superior Load Capacity: The 15° contact angle and robust construction enable it to carry high radial dynamic load ratings (49,725 lbf) and substantial one-direction axial loads simultaneously.
- Optimized High-Speed Performance: The lightweight phenolic cage ensures stability and reduces centrifugal forces, contributing to a high limiting speed of 20,000 rpm. The open design facilitates efficient lubrication management.
- Universal Matchability (SU): Bearings are universally matchable, allowing for simplified arrangement in pairs or sets (e.g., duplex or quadruplex) without the need for selective mounting to achieve the desired preload.
7020 CD/P4AQGC Bearing Typical Application Areas
This bearing is engineered for high-performance applications where precision and speed are critical. Key industries and equipment include:
- Machine Tool Spindles for milling, grinding, and turning centers
- High-Frequency Spindles in PCB drilling and routing machines
- Precision Gearboxes and transmission systems
- Industrial Pumps and compressors
- Robotic Arm Joints and precision automation equipment
