7024 CD/P4DBA
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7024 CD/P4DBA
Basic Information
System of measurement
Metric
Weight
4.26 kg
Tolerance class
P4
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
56 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
42750 lbf
Radial static load rating
55125 lbf
Limiting speed
16 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
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
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7024 CD/P4DBA Bearing Product Overview & Core Advantages
The 7024 CD/P4DBA is a duplex back-to-back (DB) angular contact ball bearing designed for applications requiring high precision and exceptional rigidity. This precision bearing is manufactured to P4 tolerance class, ensuring minimal runout and superior rotational accuracy. Its duplex back-to-back configuration enables it to withstand combined loads—significant radial loads and bidirectional axial loads—simultaneously. The extra light preload (Class A) minimizes deflection under operational stresses, making it ideal for high-speed spindles and other demanding machinery where high rigidity and precise shaft positioning are critical.
7024 CD/P4DBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7024 | Basic bearing designation, indicating a 120 mm bore, 180 mm OD. |
| C | 15° contact angle, optimized for carrying combined loads. |
| D | Duplex (two single-row bearings supplied as a matched set). |
| DB | Back-to-Back arrangement. This configuration provides high moment rigidity. |
| P4 | Precision tolerance class, denoting very tight dimensional and running accuracy. |
| A | Extra light preload (Class A), reducing friction and heat generation for high-speed operation. |
7024 CD/P4DBA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex back-to-back (DB) arrangement creates a wide, rigid support system that effectively resists moment loads and tilting moments. This design, combined with the 15° contact angle, provides excellent capability for handling combined radial and axial loads from both directions.
- Precision & High-Speed Performance: Manufactured to P4 tolerance class with an extra light preload, this bearing ensures minimal vibration and precise shaft rotation. The phenolic cage offers low weight and excellent high-speed performance, contributing to a limiting speed of 16,000 rpm.
- Material & Construction: Constructed from chrome steel for both rings and balls, ensuring high durability and fatigue resistance. The open design allows for efficient lubrication management, suitable for the specified temperature range of -30°C to 110°C.
7024 CD/P4DBA Bearing Typical Application Areas
This bearing is engineered for high-performance applications where precision and rigidity are paramount. Key sectors include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes and High-Frequency Motors.
- Industrial Pumps and Compressors requiring robust axial and radial support.
- Medical Equipment and Aerospace Actuation Systems demanding high reliability.
