7024 CD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7024 CD/HCP4ADGA
Basic Information
System of measurement
Metric
Weight
3.51 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
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
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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7024 CD/HCP4ADGA Bearing Product Overview & Core Advantages
The 7024 CD/HCP4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and high-speed performance. This universal matchable (SU) bearing is part of a matched set of 2, enabling simplified installation and optimal preload configuration. Its core advantages include the ability to handle combined loads (radial and axial) efficiently, facilitated by a 15° contact angle. Manufactured to a P4A tolerance class, it guarantees superior running accuracy and rotational precision. The use of ceramic balls and a phenolic cage contributes to its high-speed capabilities, low heat generation, and extended service life, making it ideal for the most demanding high-precision machinery.
7024 CD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
The model number 7024 CD/HCP4ADGA provides detailed technical specifications through its suffixes:
- 7024: Basic designation indicating a 120 mm bore, 180 mm OD, and 56 mm width.
- CD: Signifies a universal matchable (SU) bearing designed in a pair (Duplex). This allows for flexible mounting arrangements (DB, DF, DT) to achieve the required rigidity and preload.
- HC: Indicates the use of Hybrid Ceramic components, specifically ceramic balls, which reduce friction, heat, and wear.
- P4A: Denotes an extremely high precision tolerance class, exceeding ABEC 7 (P4) standards, for exceptional running accuracy and minimal runout.
- ADGA: Specifies the preload level as "Extra Light" (Class A). This is ideal for applications requiring high-speed operation with minimal friction and heat buildup.
7024 CD/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and universal matching capability allow two bearings to be mounted in opposition. This creates a highly rigid system capable of supporting significant combined radial and axial loads from both directions.
- Superior High-Speed Performance: The combination of ceramic balls (lower density than steel) and a lightweight phenolic resin cage significantly reduces centrifugal forces, enabling a high limiting speed of 16,000 rpm. This design minimizes friction and operational temperature.
- Exceptional Precision and Longevity: Manufactured to P4A tolerance with a 15° contact angle, this bearing ensures ultra-smooth and precise rotation. The hybrid ceramic construction offers increased durability, electrical resistance, and the ability to operate effectively within a wide temperature range (-30°C to 110°C).
- Optimized for Precision Systems: The extra light preload (ADGA) eliminates internal clearance without introducing excessive friction, making it perfect for applications where minimal starting torque and high rotational accuracy are critical.
7024 CD/HCP4ADGA Bearing Typical Application Areas
This high-performance bearing is engineered for the most critical applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- High-Frequency Motors and Spindles: Where extreme rotational speeds and accuracy are required.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instrumentation.
- Medical Equipment: High-speed dental handpieces and imaging device rotors.
