W 619/2.5
W Series Stainless Steel Miniature Bearings
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Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
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Product Overview and Core Advantages
The W 619/2.5 is a metric miniature deep groove ball bearing designed for applications requiring high precision and compact design. As a single row bearing with open construction, it excels in handling radial loads efficiently while maintaining minimal friction. Manufactured entirely from stainless steel, it offers excellent corrosion resistance and is suitable for operation within a temperature range of -30°C to 120°C. Its P0 tolerance class and CN radial clearance ensure reliable performance in precision mechanisms.
W 619/2.5 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| W 619 | Miniature deep groove ball bearing series |
| 2.5 | Bore diameter: 2.5 mm |
| Open | No seals or shields, allowing for higher speeds and easy relubrication |
Structural Features and Performance Benefits
Compact Design: With dimensions of 2.5mm bore, 7mm outside diameter, and 2.5mm width, this bearing offers an extremely compact solution for space-constrained applications.
High-Speed Capability: The open design and stainless steel cage contribute to a limiting speed of 100,000 rpm, making it suitable for high-speed miniature applications.
Corrosion Resistance: All components including rings, balls, and cage are manufactured from stainless steel, providing excellent protection against corrosion in harsh environments.
Precision Performance: Manufactured to P0 tolerance class with CN radial clearance, ensuring consistent performance and smooth operation in precision instruments.
W 619/2.5 Bearing Typical Application Areas
This miniature ball bearing is specifically designed for applications requiring small bearing dimensions and high precision:
- Medical devices and surgical instruments
- Precision instruments and measuring equipment
- Small electric motors and miniature drives
- Office automation equipment and robotics
- Optical devices and laboratory equipment
