7201 ACD/P4ADFD
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7201 ACD/P4ADFD
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
25 °
Ball & Washer Dimensions
Ball diameter
5.556 mm
Ball quantity
10
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2077 lbf
Radial static load rating
1102 lbf
Limiting speed
95 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Face-to-Face (DF)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Heavy / Class D
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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7201 ACD/P4ADFD Bearing Product Overview & Core Advantages
The 7201 ACD/P4ADFD is a precision angular contact ball bearing designed for applications demanding exceptional rigidity and accuracy. This duplex face-to-face (DF) matched set features a heavy preload (Class D), providing superior stability and resistance to complex combined loads. Manufactured to P4A tolerance class, it ensures minimal runout and high rotational accuracy, making it ideal for high-performance spindles and precision machinery where high rigidity and precise positioning are critical.
7201 ACD/P4ADFD Bearing Model Code Explained, Specifications & Naming Convention
The model number 7201 ACD/P4ADFD is decoded as follows:
- 7201: Basic series designation for a 12mm bore, 32mm OD angular contact ball bearing.
- A: Signifies a 25° contact angle, optimized for carrying significant axial loads.
- C: Indicates the heavy preload (Class D) applied to the bearing set.
- D: Denotes a duplex face-to-face (DF) mounting arrangement.
- P4A: The tolerance class, specifying extremely tight dimensional and running accuracy.
- DF: Confirms the duplex face-to-face preloaded pair configuration.
7201 ACD/P4ADFD Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex face-to-face (DF) arrangement with a heavy preload creates an exceptionally stiff bearing system, minimizing deflection under load and enhancing operational stability.
- Superior Load Capacity: The 25° contact angle and robust construction enable the bearing to handle significant combined radial and axial loads simultaneously.
- Precision Performance: Manufactured to P4A tolerance class with a phenolic cage, this bearing delivers high running accuracy, low vibration, and is suitable for high-speed applications up to 95,000 rpm.
- Optimized Material Selection: Components made from chrome steel offer high hardness and durability, while the phenolic cage contributes to smooth operation at high speeds with reduced friction.
7201 ACD/P4ADFD Bearing Typical Application Areas
This bearing is engineered for high-precision and high-stiffness applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes and Robotic Drives.
- High-Frequency Motors and Spindle Drives.
- Medical Equipment and Optical Instrumentation.
- Aerospace Actuation Systems.
