W 61900-2Z
W Series Stainless Steel Bearings
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W 61900-2Z Bearing Product Overview & Core Advantages
The W 61900-2Z is a miniature deep groove ball bearing designed for precision applications requiring compact dimensions and reliable performance. As a single row bearing with stainless steel construction throughout, it offers excellent corrosion resistance. Its key advantage lies in its ability to handle radial loads efficiently while being shielded (2Z) and pre-lubricated for maintenance-free operation. This makes it ideal for applications demanding high reliability in limited spaces.
W 61900-2Z Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| W 61900 | Basic bearing series, indicating a miniature deep groove ball bearing with a 10mm bore. |
| 2Z | Designates shielded on both sides. This provides effective protection against contaminant ingress while retaining the pre-applied grease, contributing to the bearing's maintenance-free characteristic. |
W 61900-2Z Bearing Structural Features & Performance Benefits
- Full Stainless Steel Construction: All components (rings, balls, cage) are manufactured from stainless steel, providing superior corrosion resistance and making the bearing suitable for harsh environments and washdown applications.
- Robust Load Capacity: The deep groove raceway and single row design are optimized to support significant radial dynamic load ratings (526 lbf) relative to its compact bearing dimensions (10x22x6 mm).
- High-Speed Capability: The integrated stainless steel cage and optimized geometry enable a high limiting speed of 36,000 rpm, suitable for demanding high-speed applications.
- Maintenance-Free Operation: The combination of non-contact shields (2Z) and factory-applied grease lubrication seals in the lubricant and seals out contaminants, ensuring long service life without re-lubrication.
- Precision Tolerance: Manufactured to P0 tolerance class and standard CN radial internal clearance, ensuring consistent performance and smooth operation in precision assemblies.
W 61900-2Z Bearing Typical Application Areas
- Small Electric Motors (e.g., in drones, precision tools, small appliances)
- Medical and Dental Equipment (e.g., handpieces, small pumps, analyzers)
- Precision Instruments and Optical Devices
- Office Automation Equipment (e.g., printers, scanners)
- Food Processing and Packaging Machinery (benefiting from stainless steel and shielded design)
- Robotics and Small Gearboxes