7024 ACD/P4AQBTA
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7024 ACD/P4AQBTA
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 Tandem Back-to-Back (QBT)
Number of bearings in matched set
4
Universal matching bearing
No (Standard)
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
In Stock
Price available upon request.
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7024 ACD/P4AQBTA Bearing Product Overview & Core Advantages
The 7024 ACD/P4AQBTA is a precision quadruplex matched set of Angular Contact Ball Bearings designed for the most demanding applications. This P4A tolerance class bearing is configured in a Tandem Back-to-Back (QBT) arrangement, creating an exceptionally rigid system capable of supporting very high combined loads. Its extra light preload (Class A) and 25° contact angle are optimized for high-speed operation, making it an ideal solution for machine tool spindles and other high-precision, high-performance machinery where maximum stiffness and rotational accuracy are paramount.
7024 ACD/P4AQBTA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle. |
| P4A | Indicates a high-precision tolerance class exceeding standard ABEC 7/ISO P4, ensuring extremely tight running accuracy. |
| QB | Signifies a Quadruplex (4-bearing) matched set. |
| T | Denotes the Tandem arrangement within the set. |
| A | Specifies an Extra Light Preload (Class A) for minimal friction and optimal high-speed performance. |
7024 ACD/P4AQBTA Bearing Structural Features & Performance Benefits
- Exceptional Rigidity and Load Capacity: The Quadruplex Tandem Back-to-Back (QBT) arrangement provides an extremely rigid bearing system. This configuration enables the bearing set to handle very high combined radial and axial loads simultaneously, with a radial dynamic load rating of 65,475 lbf and a static load rating of 104,625 lbf.
- Optimized for High-Speed Operation: The combination of a phenolic cage, extra light preload, and 25° contact angle allows for a high limiting speed of 10,000 rpm. The phenolic cage is lightweight and performs excellently under high centrifugal forces.
- Precision Engineering: Manufactured to P4A tolerance class with tight bore, outside diameter, and width tolerances, this bearing ensures minimal runout and superior rotational accuracy for precise applications.
- Premium Materials: Constructed from chrome steel for both rings and balls, providing high durability, wear resistance, and a long operational life.
7024 ACD/P4AQBTA Bearing Typical Application Areas
This bearing is engineered for high-end industrial applications requiring the ultimate in precision, speed, and rigidity. Key sectors include:
- High-Speed Machine Tool Spindles (milling, grinding, machining centers)
- Precision Grinding Spindles
- High-Frequency Machining Heads
- Industrial Turbochargers
- Other advanced machinery where a pre-matched, ultra-rigid bearing set is critical for performance.
