7207 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7207 ACD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.24 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.006mm to 0
Outside diameter
72 mm
Outside diameter tolerance
-0.007mm to 0
Width
17 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
13
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
6908 lbf
Radial static load rating
4680 lbf
Limiting speed
34 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:
$ 202.42
/ each
In Stock
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7207 ACD/HCP4A Bearing Product Overview & Core Advantages
The 7207 ACD/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional rotational accuracy and rigidity. This single-row bearing features a 25° contact angle, optimized for supporting combined loads where high axial load capacity is essential. Its P4 (ABEC-7) tolerance class ensures ultra-precise running accuracy, making it ideal for high-speed spindles and precision machinery. The combination of a phenolic cage and ceramic balls significantly enhances its high-speed performance and reduces rotational inertia.
7207 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Designates a 25° contact angle and optimized internal geometry for high axial load capacity and rigidity. |
| HC | Indicates the use of Hybrid Ceramic components (ceramic balls with steel rings), offering benefits for high-speed and extended service life. |
| P4 | Specifies the P4 tolerance class (ABEC-7), denoting ultra-precision manufacturing standards for minimal runout and vibration. |
7207 ACD/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The 25° contact angle and robust internal design provide superior stiffness, enabling the bearing to effectively handle significant combined radial and axial loads.
- Superior High-Speed Performance: The hybrid ceramic design with silicon nitride balls reduces centrifugal forces and friction, while the lightweight phenolic resin cage ensures stable operation at the high limiting speed of 34,000 rpm.
- Precision and Longevity: Manufactured to P4 precision class, this bearing guarantees high running accuracy and low noise. The open seal type allows for optimal lubrication management in controlled environments, contributing to a long service life.
- Preload Availability: The bearing is supplied with a preload, which eliminates internal clearance, increases system rigidity, and enhances positional accuracy in the application.
7207 ACD/HCP4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Robotics (Articulated arms, high-accuracy joints)
- High-Frequency Motors and Spindles
- Medical and Dental Equipment (High-speed handpieces, scanners)
- Aerospace Instrumentation and other critical machinery requiring high rigidity and exceptional speed.
