W 619/4-2RS1
W Series Stainless Steel Miniature Bearings
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W 619/4-2RS1 Bearing Product Overview & Core Advantages
The W 619/4-2RS1 is a miniature deep groove ball bearing designed for applications demanding high precision and reliability in compact spaces. As a single row, sealed metric bearing, its core advantage lies in its ability to efficiently handle radial loads while offering protection from contamination. Manufactured entirely from stainless steel, it provides excellent corrosion resistance. This bearing is characterized by its low friction, smooth operation, and is pre-lubricated for maintenance-free service, making it an ideal choice for high-speed, miniature applications.
Model Code In-Depth Explanation
| Code Segment | Technical Meaning |
|---|---|
| W | Stainless Steel Bearing |
| 619/4 | Deep Groove Ball Bearing Series with 4mm Bore Diameter |
| 2RS1 | Bearing with Rubber Seals on Both Sides. The "RS1" suffix indicates low-friction, nitrile rubber (NBR) contact seals, providing effective protection against dust and moisture. |
W 619/4-2RS1 Bearing Structural Features & Performance Benefits
- Compact Design & High Precision: With a bore diameter of just 4mm and a width of 4mm, this bearing is engineered for space-constrained, miniature applications. The P0 tolerance class ensures reliable performance for general precision requirements.
- Effective Sealing: The 2RS1 rubber seals on both sides effectively shield the internal components from contaminants like dust and moisture, significantly extending the bearing's service life in challenging environments.
- Corrosion Resistance & Clean Operation: Constructed entirely from stainless steel (rings, balls, and cage), this bearing is inherently resistant to rust and corrosion. This makes it suitable for applications requiring washdown, exposure to mild chemicals, or clean operating conditions.
- Maintenance-Free Operation: The bearing is pre-lubricated with grease and sealed for life, eliminating the need for re-lubrication. This simplifies design and reduces long-term maintenance costs.
W 619/4-2RS1 Bearing Typical Application Areas
The W 619/4-2RS1 is ideally suited for a wide range of small, precision instruments and devices, including:
- Small Electric Motors (e.g., in drones, miniature fans)
- Precision Instrumentation and medical devices
- Office Automation Equipment (e.g., printers, scanners)
- Radio-Control Models and hobbyist applications
- Low-Torque, High-Speed Spindles
