7008 CEGB/P4A
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7008 CEGB/P4A
Basic Information
System of measurement
Metric
Weight
0.19 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
40 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
68 mm
Outside diameter tolerance
-0.004mm to 0
Width
15 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
19
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2790 lbf
Radial static load rating
1721 lbf
Limiting speed
56 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7008 CEGB/P4A Bearing Product Overview & Core Advantages
The 7008 CEGB/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, it guarantees minimal runout and consistent performance. Its 15° contact angle and Universal Matchable (SU) design enable it to handle combined radial and axial loads efficiently. Pre-loaded as a Light / Class B single bearing, it is optimized for high-speed operation up to 56,000 rpm, making it an ideal choice for high-precision, high-speed spindles and other critical machinery.
7008 CEGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7008 | Basic bearing series, indicating a 40 mm bore, 68 mm OD, and 15 mm width. |
| C | Specifies a 15° contact angle. |
| E | Indicates an optimized internal design for high performance. |
| GB | Signifies a Light preload (Class B). |
| P4A | Denotes a high-precision tolerance class with enhanced dimensional and running accuracy. |
7008 CEGB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The P4A tolerance class ensures extremely tight dimensional control (bore/OD tolerance: -0.004mm to 0), providing superior running accuracy and system stability.
- Optimized Load Capacity: The 15° contact angle and robust construction enable the bearing to support significant combined loads (Radial Dynamic: 2790 lbf, Static: 1721 lbf).
- Superior High-Speed Performance: The lightweight phenolic cage and optimized internal geometry contribute to a high limiting speed of 56,000 rpm, reducing centrifugal forces and heat generation.
- Universal Matching Capability: Designated as Universal Matchable (SU), these bearings can be universally paired in any combination to form pre-loaded sets (2 bearings per set), simplifying mounting and ensuring consistent performance.
- Premium Material Construction: Made from chrome steel for rings and balls, the bearing offers high durability and fatigue resistance, suitable for a temperature range of -30°C to 110°C.
7008 CEGB/P4A Bearing Typical Application Areas
This precision bearing is engineered for high-performance applications, including:
- Machine Tool Spindles (e.g., CNC milling and grinding spindles)
- High-Speed Electric Motors
- Precision Gearboxes
- Medical and Dental Equipment Spindles
- Aerospace Actuators and Control Systems
