7024 CD/P4AQBCB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7024 CD/P4AQBCB
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
15 °
Ball & Washer Dimensions
Ball diameter
19.05 mm
Ball quantity
22
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
69075 lbf
Radial static load rating
110250 lbf
Limiting speed
16 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
Light / Class B
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 CD/P4AQBCB Bearing Product Overview & Core Advantages
The 7024 CD/P4AQBCB is a precision quadruplex matched set of angular contact ball bearings, engineered for the most demanding applications. This P4A tolerance class set is configured in a Back-to-Back (QBC) arrangement, delivering exceptional system rigidity and the ability to withstand combined loads, including significant radial loads and bidirectional axial loads. The light preload (Class B) ensures precise rotational accuracy and minimizes deflection under operational stresses, making it ideal for high-precision, high-reliability machinery where uncompromising performance is critical.
7024 CD/P4AQBCB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7024 | Standard bearing series designation, indicating a 120 mm bore, 180 mm OD. |
| CD | Indicates a duplex bearing with a specific internal clearance and preload. |
| P4A | Denotes an ultra-high precision tolerance class, exceeding ABEC 7/ISO P4 standards for enhanced running accuracy. |
| QBC | Specifies the matched arrangement as a Quadruplex Back-to-Back set of four bearings. |
7024 CD/P4AQBCB Bearing Structural Features & Performance Benefits
- Superior Rigidity & Load Capacity: The quadruplex back-to-back (QBC) configuration creates an extremely rigid bearing system, effectively resisting moment loads and providing stable support for spindles. This design significantly enhances the capacity to handle combined radial and axial loads.
- High-Speed Capability: The phenolic resin cage is lightweight and robust, offering excellent performance at high rotational speeds with reduced friction and centrifugal forces. This contributes to the high limiting speed of 16,000 rpm.
- Precision Performance: Manufactured to P4A tolerance class with a 15° contact angle, this set guarantees minimal runout and vibration, which is paramount for achieving superior surface finishes and machining accuracy.
- Optimized for Preload: The bearings are supplied as a pre-matched set with light preload (Class B), eliminating complex calculations and adjustments during installation, ensuring immediate optimal performance.
7024 CD/P4AQBCB Bearing Typical Application Areas
This precision bearing set is specifically designed for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling machines and high-frequency motor spindles.
- Industrial Pumps & Compressors: Where high rigidity and precision are required.
- Advanced Robotics: Critical joints and arms requiring high moment stiffness.
