7024 ACD/HCP4ATBTB
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7024 ACD/HCP4ATBTB
Basic Information
System of measurement
Metric
Weight
5.27 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
84 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
19.05 mm
Ball quantity
22
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
53550 lbf
Radial static load rating
77625 lbf
Limiting speed
10 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Triplex Back-to-Back (TBT)
Number of bearings in matched set
3
Universal matching bearing
No (Standard)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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7024 ACD/HCP4ATBTB Bearing Product Overview & Core Advantages
The 7024 ACD/HCP4ATBTB is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This triplex back-to-back (TBT) matched set consists of three individual bearings, enabling it to handle significant combined loads (radial and axial) simultaneously. Manufactured to a P4A tolerance class, it offers superior running accuracy. The use of ceramic balls and a phenolic cage contributes to its suitability as a high-speed bearing, with a limiting speed of 10,000 rpm. This configuration is ideal for applications where maximum system stiffness and precise rotational performance are critical.
7024 ACD/HCP4ATBTB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7024 | Basic bearing series, defining the bearing dimensions: 120mm bore, 180mm outside diameter, 84mm width. |
| ACD | Angular Contact Design with a 25° contact angle. |
| HCP4A | Denotes the tolerance class P4A, indicating very high precision for inner and outer ring runouts and widths. |
| TBT | Specifies the matched arrangement as Triplex Back-to-Back. This set of three bearings is pre-configured to provide high moment stiffness. |
7024 ACD/HCP4ATBTB Bearing Structural Features & Performance Benefits
- Exceptional Rigidity and Load Capacity: The triplex back-to-back (TBT) arrangement creates an extremely rigid bearing system capable of supporting high combined loads and resisting moment loads. The 25° contact angle is optimized for sustaining substantial axial loads in both directions.
- Superior High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage significantly lowers friction and inertia, enabling stable operation at the high limiting speed of 10,000 rpm.
- High Precision Operation: Manufactured to P4A tolerance class standards, this bearing ensures minimal runout and vibration, which is critical for applications requiring supreme rotational accuracy.
- Pre-Lubricated for Immediate Use: The bearing is supplied lubricated, ready for installation and initial operation, simplifying the mounting process.
7024 ACD/HCP4ATBTB Bearing Typical Application Areas
This precision bearing is engineered for high-performance machinery where accuracy, speed, and rigidity are non-negotiable. Key applications include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Gearboxes: Especially in high-torque, high-speed transmission systems.
- Industrial Pumps and Compressors: Where reliable performance under significant axial and radial loads is required.
- Advanced Robotics and Automation: In critical joints and drive units demanding high positional accuracy and stiffness.
