7200 CD/P4ADBA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7200 CD/P4ADBA
Basic Information
System of measurement
Metric
Weight
0.064 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
10 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
30 mm
Outside diameter tolerance
-0.004mm to 0
Width
18 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
10
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1638 lbf
Radial static load rating
855 lbf
Limiting speed
185 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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7200 CD/P4ADBA Bearing Product Overview & Core Advantages
The 7200 CD/P4ADBA is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This metric bearing features a back-to-back (DB) matched arrangement and P4A super-precision tolerance, making it ideal for high-speed spindles and other precision machinery. Its key advantage lies in its ability to support combined loads (radial and axial) simultaneously while maintaining high running accuracy and system stability under demanding conditions.
7200 CD/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
The model number 7200 CD/P4ADBA is decoded as follows:
- 7200: Basic series designation, indicating a light-weight, 10mm bore angular contact bearing.
- C: Denotes a 15° contact angle, optimized for high-speed operation and moderate axial loads.
- D: Indicates the bearing is part of a duplex set (two bearings supplied as a matched pair).
- P4A: Specifies the tolerance class, exceeding ABEC 7/ISO P4 standards for exceptional dimensional and running accuracy.
- DB: Defines the matched arrangement as Back-to-Back (DB). This configuration provides high moment rigidity and is best for withstanding overturning moments.
- A: Signifies an Extra Light preload within the duplex set, minimizing friction and heat generation for superior high-speed performance.
7200 CD/P4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & System Stability: The back-to-back (DB) duplex arrangement creates a wide effective spread, significantly increasing the bearing system's resistance to moment loads and enhancing overall rigidity.
- Superior Precision: Manufactured to P4A tolerance class with a 10-ball design, this bearing ensures minimal runout and vibration, which is critical for applications like machine tool spindles.
- Optimized High-Speed Performance: The combination of a 15° contact angle, phenolic resin cage (lightweight and suitable for high RPMs), and extra light preload allows for a high limiting speed of 185,000 rpm.
- Pre-Lubricated & Open Design: The bearing is supplied lubricated and with an open seal type, allowing for optimal re-lubrication strategies in high-performance systems and operation within a temperature range of -30°C to 110°C.
7200 CD/P4ADBA Bearing Typical Application Areas
This high-precision duplex bearing is engineered for the most demanding applications, including:
- Machine Tool Spindles (High-speed milling, grinding, and turning centers)
- Precision Grinding Spindles
- High-Frequency Motors
- Medical and Dental Handpieces
- Advanced Robotics and Automation
