7008 ACD/P4A
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7008 ACD/P4A
Basic Information
System of measurement
Metric
Weight
0.19 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
40 mm
Bore diameter tolerance
-0.006mm to 0
Outside diameter
68 mm
Outside diameter tolerance
-0.007mm to 0
Width
15 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
18
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
3578 lbf
Radial static load rating
2340 lbf
Limiting speed
30 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 56.93
/ each
In Stock
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7008 ACD/P4A Bearing Product Overview & Core Advantages
The 7008 ACD/P4A is a single-row angular contact ball bearing engineered for applications demanding high precision and high-speed performance. Designed to primarily accommodate combined loads (radial and axial loads in one direction), it features a 25° contact angle for optimal axial load capacity. Manufactured to P4 (ABEC-7) tolerance class, it ensures exceptional running accuracy and rotational stability. Its phenolic cage and prelubrication contribute to reliable operation in demanding conditions, making it an ideal component for high-performance machinery.
7008 ACD/P4A 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. |
| P4A | Indicates a P4 (ABEC-7) tolerance class with specific running accuracy requirements, ensuring superior precision. |
7008 ACD/P4A Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to P4 tolerance class with strict dimensional control, providing excellent running accuracy and system rigidity for precise applications.
- Optimized Load Capacity: The 25° contact angle and robust internal design enable efficient handling of significant combined (radial and axial) loads.
- Superior High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the optimized internal geometry supports a high limiting speed of 30,000 rpm.
- Ready-to-Install Convenience: The bearing is prelubricated, simplifying installation and ensuring immediate, reliable operation upon startup.
7008 ACD/P4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for:
- Machine Tool Spindles
- High-Speed Grinding & Milling Heads
- Precision Gearboxes
- Industrial Pumps & Compressors
- Medical & Laboratory Equipment
