7003 ACDGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7003 ACDGA/P4A
Basic Information
System of measurement
Metric
Weight
0.038 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
35 mm
Outside diameter tolerance
-0.004mm to 0
Width
10 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
5.556 mm
Ball quantity
12
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1462 lbf
Radial static load rating
698 lbf
Limiting speed
70 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
3
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:
$ 44.13
/ each
In Stock
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7003 ACDGA/P4A Bearing Product Overview & Core Advantages
The 7003 ACDGA/P4A is a single-row angular contact ball bearing manufactured to ultra-precision P4A tolerance class. Engineered for applications demanding exceptional rotational accuracy and high-speed performance, this bearing features a 25° contact angle optimized for carrying significant combined loads—both radial and axial loads in one direction. Its extra light preload (Class A) minimizes deflection under operational stresses, ensuring smooth, precise rotation. The phenolic cage and universal matchable (SU) designation make it ideal for high-precision spindle assemblies and other critical machinery.
7003 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7003 | Basic bearing series, 17 mm bore, 35 mm OD |
| AC | Angular Contact design with 25° contact angle |
| DGA | Extra Light Preload (Class A) |
| P4A | Ultra-Precision Tolerance Class (superior to ABEC 7) |
7003 ACDGA/P4A Bearing Structural Features & Performance Benefits
- High-Speed Capability: The phenolic resin cage and optimized internal geometry enable a limiting speed of 70,000 rpm, making it suitable for high-speed spindle applications.
- Precision & Rigidity: Manufactured to P4A tolerance standards with tight dimensional control (bore/OD tolerance: -0.004mm to 0), ensuring minimal runout and vibration for enhanced machining accuracy.
- Superior Load Capacity: The 25° contact angle and chrome steel construction provide a dynamic load rating of 1462 lbf and static load rating of 698 lbf, handling combined radial and axial loads efficiently.
- Universal Matching: Designated as Universal Matchable (SU), allowing for precise bearing arrangements (back-to-back, face-to-face, or tandem) in sets of up to 3 bearings for optimized system stiffness.
7003 ACDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles
- High-Speed Motors: Servo motors, spindle motors
- Precision Instruments: Measuring equipment, optical scanners
- Aerospace Components: Gyroscopes, navigation systems
- Medical Equipment: Dental handpieces, laboratory instrumentation
