7003/VA9D1
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7003/VA9D1
Basic Information
System of measurement
Metric
Weight
0.038 kg
Tolerance class
P4
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
103 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
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
In Stock
Price available upon request.
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7003/VA9D1 Bearing Product Overview & Core Advantages
The 7003/VA9D1 is a high-precision angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. Engineered to simultaneously handle combined radial and axial loads, this bearing features a 25° contact angle for optimal thrust capacity. Manufactured to P4 tolerance class, it delivers superior running accuracy, making it ideal for high-speed spindles and other precision machinery where minimal runout and vibration are critical.
7003/VA9D1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7003 | Basic bearing series designation, indicating a metric angular contact ball bearing with a 17mm bore, 35mm OD, and 10mm width. |
| /VA9 | Designates a Universal Matchable (SU) bearing. Two bearings can be paired in a matched arrangement (back-to-back, face-to-face, or tandem) to achieve specific preload and stiffness characteristics. |
| D1 | Indicates that the bearing is supplied with a specific preload level, ensuring immediate high rigidity and precise shaft positioning upon installation. |
7003/VA9D1 Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: Manufactured to ABEC 7 / P4 tolerance class with extremely tight dimensional tolerances on the bore, outside diameter, and width. This ensures minimal runout and superior rotational accuracy for demanding applications.
- Optimized Load Capacity: The 25° contact angle is engineered to efficiently support significant combined loads (radial and axial acting simultaneously).
- High-Speed Capability: The lightweight phenolic resin cage reduces centrifugal forces, enabling stable operation at the high limiting speed of 103,000 rpm. The open design facilitates efficient lubrication and cooling.
- Universal Matching Design: The Universal Matchable (SU) feature allows for flexible mounting of two bearings in any arrangement without the need for selective assembly, simplifying installation and optimizing system performance.
- Pre-Applied Lubrication: The bearing comes pre-lubricated, providing immediate protection and smooth operation from startup.
7003/VA9D1 Bearing Typical Application Areas
This precision bearing is ideally suited for:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC lathes.
- Precision Instrumentation: Measuring devices, optical scanners, and laboratory equipment.
- High-Frequency Motors: Spindles for PCB drilling and dental handpieces.
- Robotics: High-accuracy joints and actuators.
