W 603 R
W Series Stainless Steel Flanged Miniature Bearings
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Part No.
Part No.
W 603 R
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.001 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
3 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
9 mm
Outside diameter tolerance
-0.008mm to 0
Width
3 mm
Width tolerance
-0.12mm to 0
Outer Ring Dimensions
Flange outer diameter
10.5 mm
Flange thickness
0.7 mm
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
73 lbf
Radial static load rating
21 lbf
Limiting speed
90 X 1000 rpm
Lubrication
None
Radial internal clearance
CN
Materials
Ring material
Stainless Steel
Ball material
Stainless Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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W 603 R Bearing Product Overview & Core Advantages
The W 603 R is a metric miniature ball bearing designed for applications requiring high precision and reliable performance in compact spaces. As a single row deep groove ball bearing with an open design, it excels at handling primarily radial loads. Manufactured entirely from stainless steel, it offers excellent corrosion resistance, making it suitable for demanding environments. Its small bearing dimensions (3mm bore, 9mm OD) and lightweight construction (0.001 kg) are ideal for miniaturized assemblies.
W 603 R Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| W | Stainless Steel Deep Groove Ball Bearing series |
| 603 | Bore size code indicating a 3 mm bore diameter |
| R | Designates a flanged outer ring, which facilitates precise axial location and simplifies housing design. |
W 603 R Bearing Structural Features & Performance Benefits
- Flanged Design: The integral flange on the outer ring (flange outer diameter: 10.5 mm) provides secure axial positioning, prevents bearing creep, and simplifies housing construction, reducing assembly time and cost.
- High-Grade Stainless Steel Construction: All components, including rings, balls, and cage, are made from stainless steel, ensuring superior corrosion resistance and suitability for a wide temperature range of -30°C to 120°C.
- Open Seal Type: The open (unsealed) design allows for easy re-lubrication and minimizes friction, contributing to the high limiting speed of 90,000 rpm. It is supplied without lubrication (None), allowing users to select the optimal lubricant for their specific application.
- Precision & Load Capacity: Built to P0 tolerance class with a CN radial internal clearance, it offers reliable and consistent operation. It provides a radial dynamic load rating of 73 lbf and a static load rating of 21 lbf for robust performance.
W 603 R Bearing Typical Application Areas
This miniature flanged bearing is engineered for high-speed, compact devices across various industries:
- Precision Instruments: Optical encoders, small gauges, and medical devices.
- Small Motors and Gearboxes: Stepper motors, miniature DC motors, and reduction gears.
- Office Automation Equipment: Printers, scanners, and copiers.
- Robotics: Joints and actuators in small-scale robotic arms.
- Electronics and Consumer Goods: Cooling fans, drones, and RC models.
