7208 CDGA/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7208 CDGA/P4A
Basic Information
System of measurement
Metric
Weight
0.37 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
80 mm
Outside diameter tolerance
-0.004mm to 0
Width
18 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
14
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
7605 lbf
Radial static load rating
5400 lbf
Limiting speed
41 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
4
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
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:
$ 87.63
/ each
In Stock
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7208 CDGA/P4A Bearing Product Overview & Core Advantages
The 7208 CDGA/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. As a single-row bearing with a 15° contact angle, it excels at handling combined loads, particularly high radial loads and substantial axial loads in one direction. Manufactured to P4A tolerance class, it offers superior dimensional and running accuracy. Its extra light preload (Class A) minimizes deflection under operational forces, making it ideal for high-speed applications and precision spindles where rigidity and minimal runout are critical.
7208 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7208 | Basic bearing series; 40 mm bore, 80 mm OD, 18 mm width. |
| C | 15° contact angle. |
| DG | Universal Matchable bearing. Two bearings can be mounted in a face-to-face (DF) or back-to-back (DB) arrangement. |
| A | Extra light preload (Class A) for high rigidity and precise rotational performance. |
| P4A | High-precision tolerance class exceeding ABEC 7 standards, ensuring extremely tight dimensional and running accuracy. |
7208 CDGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The P4A tolerance class and Class A preload provide superior rotational accuracy and system stiffness, effectively resisting operational deflection.
- Optimized Load Capacity: The 15° contact angle is engineered to support significant combined radial and axial loads simultaneously.
- Superior High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, enabling a high limiting speed of 41,000 rpm. The open design facilitates efficient lubrication management.
- Universal Matching Capability (SU): As a Universal Matchable bearing, the 7208 CDGA/P4A can be precisely paired in sets (DB or DF arrangements) without selective mounting, simplifying installation and ensuring optimal preload and performance.
- Premium Materials: Constructed from chrome steel for rings and balls, ensuring high durability, wear resistance, and a long operational life.
7208 CDGA/P4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery requiring precision and speed, including:
- Machine Tool Spindles (milling, grinding, and turning centers)
- High-Frequency Motors and Spindle Drives
- Precision Gearboxes
- Industrial Pumps and Compressors
- Aerospace and Defense Instrumentation
