S7024 ACD/P4ADBB
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7024 ACD/P4ADBB
Basic Information
System of measurement
Metric
Weight
4.31 kg
Tolerance class
P4A
Seal type
Sealed
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
25 °
Ball & Washer Dimensions
Ball diameter
19.05 mm
Ball quantity
22
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
40050 lbf
Radial static load rating
52200 lbf
Limiting speed
10 X 1000 rpm
Lubrication
Grease
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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S7024 ACD/P4ADBB Bearing Product Overview & Core Advantages
The S7024 ACD/P4ADBB is a precision duplex back-to-back angular contact ball bearing designed for applications requiring exceptional rigidity and running accuracy. This P4A tolerance class bearing is preloaded (Light / Class B) and features a sealed design, making it ideal for handling combined radial and axial loads simultaneously. Its compact, matched set configuration ensures high operational reliability in demanding, high-speed environments, offering superior performance for precision machinery.
S7024 ACD/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
The model designation S7024 ACD/P4ADBB provides detailed technical specifications:
- S70: Denotes a high-precision angular contact ball bearing series.
- 24: Indicates a bore diameter of 120 mm (24 x 5 = 120 mm).
- ACD: Signifies a duplex back-to-back (DB) arrangement, which provides high moment rigidity.
- P4A: Represents a very high tolerance class, exceeding ABEC 7/ISO P4 standards for exceptional dimensional and running accuracy.
- DBB: Confirms the duplex back-to-back mounting configuration.
- Sealed / Grease: The bearing is supplied sealed and pre-lubricated with grease, enabling long-term, maintenance-free operation.
S7024 ACD/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex back-to-back (DB) arrangement creates a rigid bearing system capable of supporting significant combined loads and moment loads, making it exceptionally stable under complex force conditions.
- Precision & High-Speed Performance: Manufactured to a P4A tolerance class, this bearing ensures minimal runout and vibration. The phenolic resin cage and optimized internal geometry contribute to a high limiting speed of 10,000 rpm, suitable for demanding spindle applications.
- Sealed & Pre-Lubricated for Longevity: The integral seals protect against contamination, while the factory-applied grease lubrication ensures consistent performance across the specified temperature range (-30°C to 110°C), resulting in a long service life with minimal maintenance.
- Superior Material Construction: Manufactured from chrome steel for both rings and balls, the bearing provides high durability and fatigue resistance under heavy dynamic and static load ratings (40,050 lbf dynamic / 52,200 lbf static).
S7024 ACD/P4ADBB Bearing Typical Application Areas
This bearing is ideally suited for high-precision, high-speed machinery, including:
- Machine Tool Spindles
- High-Frequency Machining Centers
- Precision Grinding Spindles
- High-Speed Pumps and Compressors
- Robotic Arm Rotary Joints
