W 619/2 R
W Series Stainless Steel Flanged Miniature Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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W 619/2 R Bearing Product Overview & Core Advantages
The W 619/2 R is a metric miniature deep groove ball bearing designed for precision applications requiring compact dimensions and reliable performance. As a single row bearing with an open design, it excels in handling radial loads efficiently. Manufactured entirely from stainless steel, it offers excellent corrosion resistance, making it suitable for applications where exposure to moisture or harsh environments is a concern. Its extremely small bore diameter of 2 mm and lightweight construction (0.0003 kg) make it an ideal choice for miniaturized mechanisms and precision instruments demanding high rotational accuracy and durability.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| W | Stainless Steel Bearing Series |
| 619 | Deep Groove Ball Bearing Series with very low cross-section |
| /2 | Bore Diameter Code (2 mm) |
| R | Flanged Outer Ring |
W 619/2 R Bearing Structural Features & Performance Benefits
- Flanged Design for Easy Mounting: The integrated flange on the outer ring (OD: 7.5 mm) simplifies axial location and secure housing fit, reducing installation complexity and cost.
- High-Speed Capability: With a limiting speed of 110,000 rpm, this bearing is engineered for high-rotation applications. The open structure minimizes friction and heat generation.
- Corrosion Resistance: All components, including rings, balls, and cage, are made of stainless steel, providing protection against rust and enabling use in demanding environments.
- Precision & Low Noise: Built to P0 tolerance class and standard CN radial internal clearance, it ensures smooth, quiet operation and high running accuracy, which is critical for sensitive equipment.
- Compact & Lightweight: With dimensions of 2mm (bore) x 6mm (OD) x 2.3mm (width) and a weight of just 0.0003 kg, it is perfect for space-constrained and weight-sensitive designs.
W 619/2 R Bearing Typical Application Areas
- Precision Miniature Motors (e.g., in drones, small fans, and medical devices)
- Instrumentation and Measurement Equipment
- Office Automation Equipment (e.g., printers, scanners)
- Small Robotics and Actuators
- Optical and Encoder Systems
