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The W 639/2-2Z is a compact stainless steel deep groove ball bearing, measuring just 2mm by 6mm by 3mm. It handles radial loads up to 43 lbf and spins at speeds up to 90,000 RPM, making it ideal for high-speed applications.
Its shielded design keeps grease in and dirt out, reducing maintenance needs. The all-stainless construction ensures corrosion resistance, even in harsh environments.
This bearing works well in temperatures from -30°C to 120°C and is pre-lubricated for easy installation. It’s interchangeable with SKF models, offering a reliable replacement option.
Perfect for small devices like dental tools or precision instruments where space is limited. Compliant with RoHS and REACH standards, it weighs only 0.000308kg.
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How Does W 639/2-2Z Bearing Reduce Friction?
W 639/2-2Z Bearing is crafted with stainless steel rings and balls, ensuring smooth operation with minimal friction.
Its shielded design keeps contaminants out while retaining lubrication for consistent performance.
The single-row construction and precision tolerances enhance efficiency, making it ideal for high-speed applications.
With a maximum speed of 90,000 rpm, it delivers reliable performance in compact spaces.
Where Is W 639/2-2Z Bearing Used?
W 639/2-2Z Bearing is commonly used in small precision instruments, such as watch movements and miniature motors, due to its compact 2 mm×6 mm×3 mm size. The stainless steel construction ensures it performs well in environments where corrosion resistance is needed.
In consumer electronics, W 639/2-2Z Bearing can be found in devices like small fans and handheld gadgets, where smooth rotation is essential. Its shielded design helps keep out dust and debris, extending the lifespan of the component.
For medical applications, W 639/2-2Z Bearing is suitable for delicate equipment like dental tools or lab instruments, where reliability and hygiene are priorities. The grease lubrication ensures quiet operation, which is ideal for sensitive environments.
Automation systems also benefit from W 639/2-2Z Bearing, particularly in small robotic arms or micro-adjustment mechanisms. Its high-speed capability (up to 90,000 rpm) makes it a versatile choice for precise, repetitive tasks.
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