7203 ACD/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7203 ACD/P4A
Basic Information
System of measurement
Metric
Weight
0.063 kg
Tolerance class
P4 (ABEC-7)
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
-0.006mm to 0
Width
12 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
10
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
1989 lbf
Radial static load rating
900 lbf
Limiting speed
56 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:
$ 88.67
/ each
In Stock
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7203 ACD/P4A Bearing Product Overview & Core Advantages
The 7203 ACD/P4A is a single-row angular contact ball bearing designed for applications requiring high precision and high-speed operation. Engineered to accommodate combined loads, it efficiently handles both radial and significant axial loads in one direction. Its P4 (ABEC-7) tolerance class ensures exceptional running accuracy, making it ideal for high-reliability and precision-demanding scenarios. The bearing is preloaded and comes pre-lubricated for immediate use, offering a compact and robust solution for demanding mechanical systems.
7203 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance & Advantage |
|---|---|---|
| AC | Angular Contact Design | Optimized 25° contact angle for superior axial load capacity. |
| D | High Ball Complement | Increased number of balls (10 balls) for higher dynamic load rating and rigidity. |
| P4A | Tolerance Class & Preload | Denotes P4 (ABEC-7) precision and a specific light preload for reduced runout and enhanced stiffness. |
7203 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The angular contact design with a 25° contact angle and increased ball complement provides high rigidity, enabling the bearing to support significant combined radial and axial loads.
- Superior High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, contributing to a high limiting speed of 56,000 rpm. This makes it an excellent choice for high-speed spindles.
- Precision Engineering: Manufactured to P4 (ABEC-7) tolerance with tight dimensional controls on the bore diameter, outside diameter, and width, ensuring smooth, quiet, and accurate operation.
- Optimized for Performance: The bearing is pre-lubricated and features an open seal type, allowing for optimal lubrication management in controlled environments to maximize performance and service life.
7203 ACD/P4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for:
- Machine Tool Spindles
- High-Speed Motors and Spindles
- Precision Grinding Equipment
- Robotic Drives and Rotary Tables
- Medical and Dental Equipment
- Aerospace Instrumentation
