7003 CD/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7003 CD/P4A
Basic Information
System of measurement
Metric
Weight
0.038 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
35 mm
Outside diameter tolerance
-0.006mm to 0
Width
10 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
5.556 mm
Ball quantity
12
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
1521 lbf
Radial static load rating
731 lbf
Limiting speed
75 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:
$ 85.01
/ each
In Stock
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7003 CD/P4A Bearing Product Overview & Core Advantages
The 7003 CD/P4A is a single-row angular contact ball bearing designed for applications requiring exceptional rotational accuracy and high-speed performance. Manufactured to P4 (ABEC-7) tolerance class, this precision bearing delivers superior running accuracy and dimensional stability. Its key advantage lies in its ability to support combined loads, efficiently carrying significant radial loads and axial loads in one direction simultaneously. The 15° contact angle is optimized for high-speed operation, while the phenolic cage ensures smooth performance at the limiting speed of 75,000 rpm. Preloaded and pre-lubricated, it is ready for installation in high-reliability, precision machinery.
7003 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7003 | Basic bearing series designation, indicating a metric, light series angular contact bearing with a 17mm bore, 35mm OD, and 10mm width. |
| CD | Indicates a specific contact angle (15°) and internal design optimized for high-speed, high-precision applications. This is a standard designation for a specific combination of high-precision and high-speed features. |
| P4 | Denotes the tolerance class, equivalent to ABEC-7. This signifies extremely tight dimensional and running accuracy tolerances for superior performance. |
| A | Indicates that the bearing is supplied with a specific internal preload. This reduces axial and radial play, increasing system rigidity and rotational accuracy from the moment of installation. |
7003 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The single-row angular contact design, combined with a P4 tolerance class and factory-set preload, provides high system rigidity and minimizes deflection under load, ensuring precise shaft positioning.
- Optimized Load Capacity: The 15° contact angle effectively handles combined radial and axial loads. With a dynamic load rating of 1521 lbf and a static load rating of 731 lbf, it is engineered for demanding applications.
- Superior High-Speed Performance: The lightweight phenolic resin cage offers excellent dimensional stability and low friction, contributing to the high limiting speed of 75,000 rpm. The open design facilitates efficient lubrication management.
- Pre-Lubricated for Immediate Use: The bearing is pre-lubricated, simplifying installation and ensuring immediate, reliable operation within the specified temperature range of -30°C to 110°C.
7003 CD/P4A Bearing Typical Application Areas
This high-precision angular contact ball bearing is ideally suited for applications where high speed, accuracy, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Robotics: In arm joints and high-accuracy actuators.
- High-Frequency Spindles: Used in PCB drilling and routing machines.
- Medical and Dental Equipment: In high-speed handpieces and imaging systems.
- Aerospace Instrumentation: For gyroscopes and navigation systems.
