7008 ACB/P4A
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7008 ACB/P4A
Basic Information
System of measurement
Metric
Weight
0.21 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
4.762 mm
Ball quantity
26
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
1550 lbf
Radial static load rating
1192 lbf
Limiting speed
40 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:
$ 214.32
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7008 ACB/P4A Bearing Product Overview & Core Advantages
The 7008 ACB/P4A is a single-row angular contact ball bearing designed for applications requiring high precision and superior running accuracy. Engineered to a P4 (ABEC-7) tolerance class, it is preloaded and ready for installation in matched arrangements to handle significant combined loads. Its optimized design, featuring a 25° contact angle and a phenolic cage, provides excellent high-speed performance and operational stability, making it an ideal choice for high-precision spindles and machinery.
7008 ACB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| ACB | Indicates a specific contact angle (25°) and internal design optimized for high rigidity and precise operation. |
| P4A | Denotes a P4 (ABEC-7) tolerance class and that the bearing is supplied with a preload applied, ensuring immediate high-performance operation upon installation. |
7008 ACB/P4A Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to P4 tolerance standards with a 25° contact angle, this bearing provides exceptional dimensional accuracy and stiffness, effectively resisting operational deflection under load.
- Superior High-Speed Capability: The lightweight and durable phenolic resin cage ensures stable guidance of the balls, reducing friction and enabling a high limiting speed of 40,000 rpm.
- Optimized Load Capacity: The angular contact design is engineered to support significant combined radial and axial loads simultaneously, with a dynamic load rating of 1550 lbf.
- Ready-to-Install Preload: The bearing is supplied with a factory-applied preload, simplifying the assembly process and guaranteeing immediate high running accuracy and system rigidity.
7008 ACB/P4A Bearing Typical Application Areas
This high-precision angular contact ball bearing is ideally suited for demanding applications, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- High-Speed Pumps and Compressors
- Medical and Dental Equipment
- Robotic Arm Joints and Precision Gearboxes
