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The W 639/2 R-2Z is a compact flanged deep groove ball bearing, measuring just 2mm by 6mm with a 3mm width. Its stainless steel construction offers good corrosion resistance and durability.
This shielded bearing handles radial loads up to 43 lbf and spins at speeds up to 90,000 RPM, making it suitable for high-speed applications. The flange design helps keep it securely in place during operation.
With grease lubrication and a temperature range of -30°C to 120°C, it requires minimal maintenance. The bearing is interchangeable with SKF models for easy replacement.
Ideal for small devices like precision instruments or miniature motors where space is limited. Its lightweight design (0.000408kg) adds minimal bulk while providing reliable performance.
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Performance Features of W 639/2 R-2Z Bearing
W 639/2 R-2Z Bearing is crafted with stainless steel rings and balls, offering excellent resistance to corrosion.
Its compact size of 2 mm×7.5 mm×3 mm makes it ideal for applications where space is limited.
The shielded design helps keep contaminants out, ensuring smooth operation.
With a maximum speed of 90,000 rpm, it delivers reliable performance in high-speed applications.
How Does W 639/2 R-2Z Bearing Reduce Friction?
W 639/2 R-2Z Bearing features a deep groove design, which minimises friction during operation.
The stainless steel construction ensures smooth movement, even under radial loads.
Its shielded seals help retain lubrication, reducing wear over time.
This design makes it suitable for precision instruments requiring quiet and efficient performance.
Designed for Durability: W 639/2 R-2Z Bearing
W 639/2 R-2Z Bearing is built with all stainless steel components, enhancing its longevity.
The flanged outer ring provides secure mounting, preventing misalignment during use.
It can handle dynamic radial loads up to 43 lbf, making it robust for small-scale applications.
The grease lubrication ensures consistent performance across a wide temperature range.
Steel vs Ceramic Bearings: Strengths of W 639/2 R-2Z Bearing
W 639/2 R-2Z Bearing uses stainless steel for all its components, offering a balance of strength and affordability.
Unlike ceramic bearings, it provides reliable performance in both high and low-temperature environments.
The shielded design adds an extra layer of protection against dust and moisture.
Its lightweight construction at just 0.000408 kg makes it easy to integrate into compact devices.
Why Choose W 639/2 R-2Z Bearing for Precision Tasks?
W 639/2 R-2Z Bearing’s precise dimensions ensure accurate performance in delicate applications.
The P0 tolerance class guarantees consistent quality and reliability.
Its high-speed capability of 90,000 rpm makes it suitable for demanding tasks.
The stainless steel material resists rust, maintaining performance even in humid conditions.
Common Applications of W 639/2 R-2Z Bearing
W 639/2 R-2Z Bearing is widely used in small electric motors, such as those found in cooling fans or miniature pumps, thanks to its compact size and shielded design. The stainless steel construction ensures it performs well in humid or corrosive environments.
In consumer electronics, W 639/2 R-2Z Bearing fits neatly into devices like handheld fans or precision tools, where space is limited but smooth rotation is essential. Its high-speed capability makes it a reliable choice for these applications.
For automation projects, W 639/2 R-2Z Bearing works well in small robotic joints or 3D printer components, offering quiet operation and durability. The flange design helps with easy mounting in tight spaces.
Medical devices like dental tools or lab equipment often use W 639/2 R-2Z Bearing due to its precision and resistance to frequent sterilisation. The grease lubrication ensures long-term performance without maintenance.
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