7024 CE/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7024 CE/HCP4A
Basic Information
System of measurement
Metric
Weight
1.96 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
120 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
180 mm
Outside diameter tolerance
-0.01mm to 0
Width
28 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
14.288 mm
Ball quantity
29
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
12870 lbf
Radial static load rating
12375 lbf
Limiting speed
17.5 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1529.56
/ each
In Stock
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7024 CE/HCP4A Bearing Product Overview & Core Advantages
The 7024 CE/HCP4A is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and performance. As a single-row bearing, it is designed to accommodate high radial loads and substantial one-direction axial loads simultaneously. Its defining features include a 15° contact angle, a P4 (ABEC-7) tolerance class for superior running accuracy, and a phenolic resin cage enabling high-speed operation. The combination of a chrome steel ring and ceramic balls significantly reduces friction and wear, making it an ideal solution for high-speed, high-rigidity applications where reliability is paramount.
7024 CE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| CE | Indicates the use of ceramic balls (Silicon Nitride, Si3N4). | Reduces centrifugal forces, lowers operating temperature, and enables higher limiting speeds. Offers excellent electrical insulation and corrosion resistance. |
| HC | Refers to the phenolic resin cage design. | Provides lightweight construction with high strength, excellent dimensional stability, and superior guidance for smooth operation at high speeds. |
| P4 | Specifies the tolerance class (ABEC-7). | Guarantees extremely tight dimensional and running accuracy, resulting in minimal vibration and precise rotational performance for critical applications. |
7024 CE/HCP4A Bearing Structural Features & Performance Benefits
- Optimized Contact Angle & High Rigidity: The 15° contact angle is optimally balanced to handle significant combined loads, providing high axial and radial stiffness for stable shaft positioning.
- Superior High-Speed Performance: The combination of a lightweight phenolic cage and low-density ceramic balls minimizes centrifugal forces and inertial effects, allowing the bearing to achieve its high limiting speed of 17,500 rpm.
- Enhanced Durability and Longevity: The ceramic-ball and steel-ring hybrid construction drastically reduces wear, extends service life, and maintains performance over a wide temperature range (-30°C to 110°C).
- Precision Engineering: Manufactured to P4 tolerance class, this bearing ensures minimal runout and vibration, which is critical for the accuracy of high-speed spindles and other precision machinery.
7024 CE/HCP4A Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and auxiliary power units.
- High-Frequency Motors and Spindles: Where low friction, high speed, and long life are required.
