7024 ACE/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7024 ACE/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
25 °
Ball & Washer Dimensions
Ball diameter
14.288 mm
Ball quantity
29
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
12150 lbf
Radial static load rating
11700 lbf
Limiting speed
15.5 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 ACE/HCP4A Bearing Product Overview & Core Advantages
The 7024 ACE/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. Its design excels at simultaneously handling combined radial and axial loads in one direction. A key advantage is its P4 (ABEC-7) tolerance class, ensuring ultra-precise running accuracy. The combination of a phenolic resin cage and ceramic balls contributes to superior high-speed capabilities and reduced rotational mass. This bearing is pre-lubricated and preloaded, making it ideal for high-rigidity, high-reliability installations where minimal runout and long service life are critical.
7024 ACE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning | Performance Implication |
|---|---|---|
| 7024 | Standard bore diameter (120 mm), outside diameter (180 mm), and width (28 mm) designation. | Defines the core bearing dimensions. |
| ACE | Internal designator for a specific combination of 25° contact angle, preload, and internal geometry. | Optimized for high rigidity and precise axial load capacity. |
| HCP4A | Indicates a matched set of bearings supplied with a specific preload. P4A signifies P4 (ABEC-7) tolerance on both bore and outside diameter. | Guarantees ultra-high precision and consistent performance in matched arrangements. |
7024 ACE/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity & Axial Load Capacity: The 25° contact angle and factory-applied preload work in tandem to provide exceptional system stiffness, minimizing deflection under heavy axial and combined loads.
- Superior High-Speed Performance: The lightweight phenolic resin cage offers excellent dimensional stability and low friction at high rotational speeds. Combined with ceramic (Si3N4) balls that are lighter and harder than steel, the bearing achieves a higher limiting speed with reduced centrifugal forces and heat generation.
- Ultra-Precision Operation: Manufactured to P4 tolerance class with tight dimensional control on bore, outside diameter, and width, this bearing ensures minimal vibration and precise running accuracy for critical spindles.
- Optimized for Performance: The open seal type minimizes friction for maximum speed, while the pre-applied lubrication is suitable for the specified operating temperature range.
7024 ACE/HCP4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery where precision, speed, and rigidity are non-negotiable. Key application areas include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling machines, high-frequency motor spindles.
- Aerospace & Defense Systems: Gyroscopes, radar equipment, and auxiliary power units.
- High-Speed Automation & Robotics: Robotic arm joints and high-cycle rotary tables.
