7020 CD/P4AQBCC
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7020 CD/P4AQBCC
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
Quadruplex Back-to-Back (QBC)
Number of bearings in matched set
4
Universal matching bearing
No (Standard)
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
Price available upon request.
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7020 CD/P4AQBCC Bearing Product Overview & Core Advantages
The 7020 CD/P4AQBCC is a precision quadruplex matched set of angular contact ball bearings designed for the most demanding applications. This metric bearing arrangement is specifically configured in a Back-to-Back (QBC) quadruplex set, delivering exceptional system rigidity and the ability to handle complex combined loads, including significant radial and axial forces. Manufactured to the exacting P4A tolerance class, it guarantees superior running accuracy and is optimized for high-performance scenarios requiring maximum stability and precision.
7020 CD/P4AQBCC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7020 | Basic bearing designation, indicating a 100 mm bore and 150 mm outside diameter. |
| C | Specifies a 15° contact angle, optimized for high-speed operation and axial load capacity. |
| D | Indicates a moderate preload (Class C), providing enhanced stiffness and reduced deflection under load. |
| P4A | Denotes an ultra-high precision tolerance class, exceeding ABEC 7 standards for superior running accuracy. |
| QBCC | Signifies a Quadruplex Back-to-Back (QBC) matched set. The bearings are supplied as a pre-configured, ready-to-install unit for optimal performance. |
7020 CD/P4AQBCC Bearing Structural Features & Performance Benefits
- Exceptional Rigidity and Load Capacity: The quadruplex back-to-back arrangement creates an extremely rigid bearing system, capable of supporting high combined radial and axial loads from both directions. This configuration is ideal for applications where shaft displacement must be minimized.
- High-Speed Capability: The 15° contact angle and lightweight phenolic resin cage are engineered for stable operation at high rotational speeds, with a limiting speed of 20,000 rpm.
- Precision Performance: Manufactured to P4A tolerance with tight dimensional control on the bore diameter, outside diameter, and width, ensuring smooth, quiet, and vibration-free operation.
- Durable Construction: Components are made from high-grade chrome steel for the rings and balls, providing excellent wear resistance and long service life. The set is pre-lubricated for immediate operation.
7020 CD/P4AQBCC Bearing Typical Application Areas
This high-precision, high-rigidity bearing set is ideally suited for advanced machinery and systems, including:
- High-Speed Machine Tool Spindles (e.g., for milling, grinding, and drilling)
- Precision Gearboxes and Transmission Systems
- Industrial Pumps and Compressors
- Aerospace and Defense Actuation Systems
- Medical and Laboratory Equipment requiring high rotational accuracy
