7008 ACDTP/P4B
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7008 ACDTP/P4B
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
19 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:
$ 214.48
/ each
In Stock
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7008 ACDTP/P4B Bearing Product Overview & Core Advantages
The 7008 ACDTP/P4B is a high-precision angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This single-row bearing features a 25° contact angle and is supplied with a preload, making it ideal for supporting combined radial and axial loads in high-speed spindle arrangements. Manufactured to P4 (ABEC-7) tolerance class, it delivers superior running accuracy, low noise, and high operational reliability in demanding precision machinery.
7008 ACDTP/P4B Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle. |
| DTP | Indicates a specific internal design and preload level for high rigidity. |
| P4B | Denotes a high-precision tolerance class equivalent to ABEC-7. |
7008 ACDTP/P4B Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The combination of a 25° contact angle and applied preload minimizes axial and radial deflection under load, ensuring exceptional system stiffness and positioning accuracy critical for precision machining.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, enabling stable operation at the high limiting speed of 19,000 rpm. The open design facilitates efficient lubrication management.
- Superior Load Capacity: Engineered to handle significant combined loads (Radial Dynamic: 3578 lbf, Static: 2340 lbf), making it suitable for applications with complex load conditions.
- Premium Materials: Constructed from chrome steel for rings and balls, ensuring high durability, wear resistance, and a long service life under demanding operating conditions.
7008 ACDTP/P4B Bearing Typical Application Areas
This bearing is specifically engineered for high-performance applications, including:
- Machine Tool Spindles for CNC milling and grinding machines
- High-Speed Machining Centers
- Precision Grinding Spindles
- High-Frequency Motors and Spindle Drives
