7201 CD/P4ADBA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7201 CD/P4ADBA
Basic Information
System of measurement
Metric
Weight
0.074 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
12 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
32 mm
Outside diameter tolerance
-0.004mm to 0
Width
20 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
5.556 mm
Ball quantity
10
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2151 lbf
Radial static load rating
1148 lbf
Limiting speed
95 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
Price available upon request.
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Product Overview and Core Advantages
The 7201 CD/P4ADBA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. This duplex back-to-back (DB) arrangement provides superior stability and can accommodate combined radial and axial loads. Manufactured to P4A tolerance class, it ensures high running accuracy and is pre-lubricated for immediate use, making it ideal for high-speed, high-precision machinery where reliability is paramount.
7201 CD/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
The model number 7201 CD/P4ADBA provides specific technical information:
- 7201: Basic bearing series and size designation (12mm bore, 32mm OD).
- C: Denotes a 15° contact angle, optimized for high-speed applications.
- D: Indicates the bearing is part of a Duplex Back-to-Back (DB) matched set.
- P4A: Specifies the tolerance class, indicating very high precision for dimensional and running accuracy.
- DB: Confirms the Back-to-Back arrangement of the two bearings in the set.
- A: Signifies an Extra Light preload for minimal friction and optimal high-speed performance.
Structural Features and Performance Benefits
- High Rigidity and Stability: The duplex back-to-back (DB) arrangement creates a rigid bearing system that effectively resists moment loads, providing exceptional operational stability for spindles and precision axes.
- Precision Performance: Manufactured to P4A tolerance class with tight dimensional tolerances on bore, outside diameter, and width, ensuring high running accuracy and consistent performance.
- High-Speed Capability: The 15° contact angle and phenolic resin cage are engineered for reduced friction and centrifugal forces, enabling a high limiting speed of 95,000 rpm.
- Optimized Load Capacity: The angular contact design efficiently handles combined radial and axial loads simultaneously, with a dynamic load rating of 2151 lbf and a static load rating of 1148 lbf.
- Ready-to-Install: The bearing is pre-lubricated and comes as a pre-matched set, simplifying installation and ensuring immediate, reliable operation.
7201 CD/P4ADBA Bearing Typical Application Areas
This high-precision bearing is ideally suited for:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Rotary Systems: High-frequency spindles and indexing tables.
- Medical and Dental Equipment: High-speed handpieces and scanners.
- Robotics: Precision joints and arm linkages requiring high rigidity.
- Aerospace Instrumentation: Gyroscopes and navigation systems.
