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The W 639/3-2Z is a compact stainless steel deep groove ball bearing, measuring just 3mm by 8mm by 4mm. It’s designed for radial loads up to 72 lbf and can handle speeds up to 75,000 RPM.
Its shielded design keeps dirt out while retaining grease, making it low-maintenance. The all-stainless construction ensures corrosion resistance and durability.
This bearing operates smoothly in temperatures from -30°C to 120°C. It’s interchangeable with SKF models, offering a reliable replacement option.
Weighing only 0.000822kg, it’s ideal for small devices like medical instruments or precision tools where space is limited. Compliant with RoHS and REACH standards.
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How Does W 639/3-2Z Bearing Reduce Friction?
W 639/3-2Z Bearing features stainless steel rings and balls, ensuring smooth operation with minimal friction.
Its shielded design helps retain lubrication, further reducing wear and maintenance needs.
The single-row construction of W 639/3-2Z Bearing provides reliable radial load support up to 72 lbf.
With a maximum speed of 75,000 rpm, it delivers consistent performance in high-speed applications.
W 639/3-2Z Bearing operates efficiently in temperatures ranging from -30° to 120°C.
Its stainless steel materials resist corrosion, making it suitable for various environments.
The compact size of W 639/3-2Z Bearing (3 mm×8 mm×4 mm) allows for easy integration into small spaces.
Despite its small dimensions, it maintains durability and precision.
Common Applications of W 639/3-2Z Bearing
W 639/3-2Z Bearing is widely used in small electric motors, such as those found in cooling fans or miniature appliances, thanks to its compact size and shielded design.
The stainless steel construction makes it suitable for environments where corrosion resistance is important, like food processing equipment or medical devices.
How Does W 639/3-2Z Bearing Improve Performance?
In precision instruments like optical devices or small gauges, W 639/3-2Z Bearing provides smooth rotation with minimal friction.
Its high-speed capability also makes it a reliable choice for dental handpieces or other rotary tools requiring consistent performance.
Built for Versatility: W 639/3-2Z Bearing
W 639/3-2Z Bearing works well in consumer electronics, particularly in devices like computer cooling fans or small printers.
The grease lubrication ensures quiet operation, which is ideal for household appliances where noise reduction matters.
Medical vs Industrial: Where W 639/3-2Z Bearing Excels
In medical applications, W 639/3-2Z Bearing is often found in lab equipment or small pumps due to its hygienic stainless steel build.
For industrial use, it’s commonly fitted into miniature conveyor systems or sensor mechanisms where space is limited but reliability is key.
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