W 618/6 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 618/6 R Bearing Product Overview & Core Advantages
The W 618/6 R is a metric miniature deep groove ball bearing designed for precision applications requiring compact dimensions and reliable performance. This single row bearing excels in handling primarily radial loads while offering smooth operation. Manufactured entirely from stainless steel (rings, balls, and cage), it provides excellent corrosion resistance, making it ideal for harsh environments. Its open design allows for easy re-lubrication and customization, while the integrated flange ensures secure mounting and precise axial location. This bearing is characterized by its high limiting speed and compliance with ROHS and REACH standards.
W 618/6 R Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| W | Stainless Steel Deep Groove Ball Bearing series |
| 618/6 | Bearing series and bore diameter (6 mm) |
| R | Bearing with a flange on the outer ring |
W 618/6 R Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The bearing rings, balls, and cage are made from stainless steel, providing superior corrosion resistance and enabling operation in wet or chemically aggressive environments.
- Flanged Outer Ring: The integrated flange (15 mm outer diameter) simplifies bearing housing design, ensures precise axial positioning, and facilitates easier installation and removal.
- Deep Groove Raceway: The optimized raceway geometry enables the bearing to handle not only radial loads but also moderate axial loads in both directions.
- Open Seal Type: The open design allows for high-speed operation and provides the flexibility for application-specific lubrication or cleaning. The standard CN radial internal clearance ensures reliable performance under normal operating conditions.
- High-Speed Capability: With a limiting speed of 67,000 rpm, this bearing is engineered for demanding high-speed applications, supported by a low-friction stainless steel cage.
W 618/6 R Bearing Typical Application Areas
- Precision Small Motors (e.g., stepper motors, DC micromotors)
- Medical and Dental Equipment (e.g., handheld tools, pumps)
- Office Automation Equipment (e.g., printers, scanners)
- Instrumentation and Control Systems
- Food Processing Machinery (benefiting from its corrosion-resistant properties)
