S7008 ACDTP/P4B
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7008 ACDTP/P4B
Basic Information
System of measurement
Metric
Weight
0.19 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
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:
$ 257.52
/ each
In Stock
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S7008 ACDTP/P4B Bearing Product Overview & Core Advantages
The S7008 ACDTP/P4B is a high-precision, sealed, angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered to a P4 (ABEC-7) tolerance class, it is optimized to handle combined loads, supporting significant radial loads and thrust loads in one direction. Its compact design, featuring a phenolic cage and preloaded configuration, makes it an ideal choice for high-speed spindles and other precision machinery where high rigidity and minimal runout are critical.
S7008 ACDTP/P4B Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7008 | Basic bearing series and size designation (40mm bore, 68mm OD). |
| AC | Angular Contact design with a 25° contact angle. |
| DT | Matched set of two bearings in a Tandem (DT) arrangement to increase axial load capacity in one direction. |
| P | Indicates a Preload is applied for enhanced rigidity and precise rotational accuracy. |
| P4B | Specifies the tolerance class P4 (ABEC-7), denoting very high precision. The 'B' may indicate specific dimensional or running accuracy requirements within this class. |
S7008 ACDTP/P4B Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The P4 tolerance class and applied preload ensure minimal deflection and superior running accuracy, which is essential for applications like machine tool spindles.
- Optimized Load Capacity: The 25° contact angle and Tandem (DT) arrangement are engineered to handle high axial loads in one direction while also supporting substantial radial loads.
- High-Speed Capability: The lightweight phenolic resin cage reduces centrifugal forces, contributing to a high limiting speed of 19,000 rpm. The bearing is pre-lubricated for immediate operation.
- Sealed and Ready-to-Use: As a sealed bearing, it is protected from contamination and comes pre-lubricated, offering long service life and maintenance-free operation in many applications.
- Durable Construction: Manufactured from chrome steel for both rings and balls, ensuring high durability and fatigue resistance.
S7008 ACDTP/P4B Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles (milling, grinding)
- High-Speed Motors
- Precision Gearboxes
- Industrial Pumps and Compressors
- Medical and Laboratory Equipment
