W 619/9 R-2Z
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 619/9 R-2Z Bearing Product Overview & Core Advantages
The W 619/9 R-2Z is a single row deep groove ball bearing designed for precision applications requiring high reliability and compact design. This shielded bearing features stainless steel construction throughout, providing excellent corrosion resistance and durability. Engineered to handle primarily radial loads with moderate axial capacity, it offers superior performance in demanding environments. The bearing's metric dimensions (9mm bore, 20mm OD) and P0 tolerance class ensure precise fitment and smooth operation, making it ideal for applications where space constraints and precision are critical factors.
Model Code Detailed Breakdown
| Code Segment | Technical Meaning | Benefit |
| W 619/9 | Deep groove ball bearing series with 9mm bore diameter | Standardized dimension series for easy replacement |
| R | Flanged outer ring design | Simplifies mounting and axial location |
| 2Z | Double-sided steel shields | Effective contaminant protection while maintaining low torque |
W 619/9 R-2Z Bearing Structural Features & Performance Benefits
Full Stainless Steel Construction: All components (rings, balls, cage) manufactured from stainless steel provide exceptional corrosion resistance and suitability for harsh environments, including washdown applications and chemical exposure.
Optimized Shield Design: The double-sided steel shields (2Z) effectively retain lubricant and exclude contaminants while maintaining low friction characteristics, enabling reliable operation without additional sealing components.
Flanged Outer Ring: The integrated flange (23mm diameter, 1.5mm thickness) facilitates precise axial positioning and simplifies housing design, reducing assembly time and improving mounting accuracy.
Pre-lubricated Design: Factory-filled grease lubrication provides immediate operation readiness and maintenance-free performance throughout the bearing's service life under normal operating conditions.
Precision Engineering: Manufactured to P0 tolerance class with CN radial clearance, ensuring consistent performance, smooth operation, and reliable fitment in precision applications.
W 619/9 R-2Z Bearing Typical Application Areas
- Medical Equipment: Surgical instruments, dental handpieces, diagnostic devices
- Food Processing Machinery: Conveyor systems, mixers, packaging equipment
- Precision Instruments: Optical devices, measuring equipment, laboratory apparatus
- Small Electric Motors: Miniature motors, servo motors, precision drives
- Office Automation: Printers, scanners, copiers where corrosion resistance is required
- Robotics: Small robotic joints, actuator mechanisms, precision positioning systems
