7203 CD/P4ADGA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7203 CD/P4ADGA
Basic Information
System of measurement
Metric
Weight
0.13 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
17 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
40 mm
Outside diameter tolerance
-0.004mm to 0
Width
24 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
10
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3398 lbf
Radial static load rating
1868 lbf
Limiting speed
103 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
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:
$ 103.69
/ each
In Stock
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7203 CD/P4ADGA Bearing Product Overview & Core Advantages
The 7203 CD/P4ADGA is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a universally matchable (SU) bearing supplied in a pre-set pair, it is engineered to accommodate combined loads (radial and axial) simultaneously. Its P4A tolerance class and extra light preload (Class A) ensure smooth, quiet operation with minimal runout, making it ideal for high-speed spindles and other precision machinery where reliability is critical.
7203 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Indicates a universal matchable bearing pair with a 15° contact angle, designed to be mounted in either a face-to-face or back-to-back arrangement. |
| P4A | Specifies a high-precision tolerance class with enhanced dimensional and running accuracy, suitable for demanding applications. |
| DGA | Denotes that the bearing is lubricated and supplied as a pre-loaded pair (Extra light / Class A). |
7203 CD/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and universal matching (SU) of the two bearings create a highly rigid system capable of supporting significant combined radial and axial loads from both directions.
- Superior High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, while the optimized internal geometry and 15° contact angle contribute to a high limiting speed of 103,000 rpm, making it an excellent high-speed bearing.
- Precision & Accuracy: Manufactured to P4A tolerance class with tight dimensional controls on bore, outside diameter, and width, this bearing ensures minimal vibration and precise shaft positioning.
- Optimized Material Selection: Components made from chrome steel provide high hardness and durability, ensuring long service life under demanding operating conditions.
7203 CD/P4ADGA Bearing Typical Application Areas
This precision bearing is ideally suited for:
- Machine Tool Spindles
- High-Speed Grinding & Milling Heads
- Precision Instrumentation
- High-Frequency Motors
- Medical & Dental Equipment
