7201 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7201 ACD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.033 kg
Tolerance class
P4 (ABEC-7)
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
-0.006mm to 0
Width
10 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° to 110 °C
Radial dynamic load rating
1287 lbf
Radial static load rating
551 lbf
Limiting speed
85 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 71.04
/ each
In Stock
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7201 ACD/HCP4A Bearing Product Overview & Core Advantages
The 7201 ACD/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This single-row bearing features a 25° contact angle and is supplied with a preload, delivering superior rotational accuracy and high rigidity. Its construction with a ceramic ball and phenolic cage enables outstanding high-speed performance and thermal stability. This bearing is engineered to handle combined radial and axial loads simultaneously, making it an ideal solution for high-reliability, precision machinery.
7201 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance |
|---|---|---|
| ACD | Angular Contact Design (25° contact angle) | Optimized for handling significant axial loads in one direction along with radial loads. |
| HC | Hybrid Ceramic (Ceramic balls, steel rings) | Reduces weight and centrifugal force, enabling higher speeds, reduced friction, and longer service life. |
| P4 | Tolerance Class (ABEC-7 / ISO P4) | Guarantees extremely tight dimensional and running accuracy for precision applications. |
7201 ACD/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The preloaded single-row design and P4 super-precision tolerance eliminate internal clearance, providing maximum system stiffness and minimal runout for exceptional positional accuracy.
- Superior High-Speed Capability: The combination of lightweight ceramic balls and a phenolic resin cage significantly reduces centrifugal forces and inertial mass. This allows the bearing to achieve a remarkable limiting speed of 85,000 rpm with minimal heat generation.
- Enhanced Durability and Life: Hybrid ceramic construction offers superior resistance to wear and provides electrical insulation. The phenolic cage is durable and operates effectively at high speeds with minimal friction.
- Optimized Load Capacity: With a 25° contact angle, this bearing is engineered to efficiently support high combined loads, particularly excelling in applications with dominant axial loads.
7201 ACD/HCP4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications where speed, precision, and reliability are critical. Key industries and equipment include:
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Motors and Spindles
- Aerospace Actuators and Control Systems
- Semiconductor Manufacturing Equipment
- Medical and Dental Handpieces
