7024 ACD/P4AQBCD
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7024 ACD/P4AQBCD
Basic Information
System of measurement
Metric
Weight
8.52 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
120 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
180 mm
Outside diameter tolerance
-0.004mm to 0
Width
112 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
19.05 mm
Ball quantity
22
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
65475 lbf
Radial static load rating
104625 lbf
Limiting speed
10 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
Heavy / Class D
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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7024 ACD/P4AQBCD Bearing Product Overview & Core Advantages
The 7024 ACD/P4AQBCD is a precision angular contact ball bearing configured in a Quadruplex Back-to-Back (QBC) matched set. Engineered for applications demanding the highest levels of rigidity and accuracy, this bearing is preloaded to Heavy / Class D specifications. Its primary advantage lies in its ability to manage combined loads—significant radial and thrust loads—simultaneously with exceptional stability, making it ideal for high-precision, high-stiffness machinery under demanding operational conditions.
7024 ACD/P4AQBCD Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle, optimized for high thrust capacity. |
| P4A | Indicates a high-precision tolerance class (superior to ABEC 7), ensuring minimal runout and superior rotational accuracy. |
| QBC | Denotes the bearing is one of four in a Quadruplex Back-to-Back matched arrangement, providing maximum system rigidity. |
| D | Specifies a Heavy preload, which minimizes deflection under load for superior positional accuracy. |
7024 ACD/P4AQBCD Bearing Structural Features & Performance Benefits
- Unmatched Rigidity and Stability: The Quadruplex Back-to-Back (QBC) arrangement creates an extremely rigid bearing system that effectively resists moment loads and shaft deflection, which is critical for maintaining precision in heavy-duty applications.
- Superior Load Capacity: With a 25° contact angle and a heavy preload, this bearing is designed to handle high combined radial and axial loads in both directions, ensuring reliable performance under complex loading conditions.
- Precision Engineering: Manufactured to a P4A tolerance class with tight dimensional controls on the bore diameter (120 mm), outside diameter (180 mm), and width (112 mm), guaranteeing consistent, high-accuracy performance.
- Optimized High-Speed Capability: The phenolic cage is lightweight and robust, contributing to smooth operation and allowing for a high limiting speed. The bearing comes pre-lubricated for immediate operation.
- Durable Construction: Components made from chrome steel for both rings and balls provide high hardness, wear resistance, and a long operational life.
7024 ACD/P4AQBCD Bearing Typical Application Areas
This bearing is specifically designed for the most demanding industrial sectors where precision, rigidity, and reliability are non-negotiable. Key applications include:
- High-Precision Machine Tool Spindles: For milling, grinding, and turning centers that require extreme accuracy and stiffness.
- High-Rigidity Industrial Robots: Particularly in the robotic arm joints and gears where moment loads are significant.
- Aerospace and Defense Positioning Systems: In gyroscopes, radar antennas, and other critical guidance systems.
- Specialized Medical Imaging Equipment: Such as CT scanners and MRI gantries that demand smooth, precise rotation.
