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The W 618/4 is a compact stainless steel deep groove ball bearing, measuring just 4mm by 9mm by 2.5mm. It handles radial loads up to 82 lbf and can spin at speeds up to 85,000 RPM, making it both sturdy and fast.
Its open design allows for easy lubrication, while the all-stainless construction ensures corrosion resistance. The bearing operates smoothly in temperatures from -30°C to 120°C.
This model is interchangeable with SKF bearings, offering a reliable replacement option. It’s ideal for small devices like precision instruments or miniature motors where space is limited.
Weighing only 0.0006kg, it’s lightweight yet durable. Compliant with RoHS and REACH standards, it’s safe for various applications.
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Why Choose W 618/4 Bearing for Precision Tasks?
W 618/4 Bearing is crafted from stainless steel, offering excellent resistance to corrosion and wear.
Its compact size of 4 mm×9 mm×2.5 mm makes it ideal for precision applications where space is limited.
The open design ensures smooth operation, with a maximum speed of 85,000 rpm for high-performance needs.
With a dynamic radial load capacity of 82 lbf, it handles light to moderate loads efficiently.
W 618/4 Bearing’s single-row construction provides reliable radial load support in various conditions.
Its stainless steel cage maintains ball alignment, ensuring consistent performance over time.
Common Applications of W 618/4 Bearing
W 618/4 Bearing works well in small electric motors, such as those found in cooling fans or miniature pumps, thanks to its compact 4mm bore size. The stainless steel construction ensures it handles moisture and mild chemicals without rusting.
In medical devices like dental tools or handheld diagnostics, W 618/4 Bearing offers smooth rotation at high speeds. Its open design allows for easy cleaning, which is vital in hygiene-sensitive environments.
For precision instruments such as watch mechanisms or optical equipment, W 618/4 Bearing provides reliable performance due to its tight tolerances. The lightweight design (just 0.0006kg) minimises inertia in delicate movements.
Automotive applications include throttle systems or dashboard controls where space is limited. Here, W 618/4 Bearing’s 85,000 rpm capability ensures responsive operation.
In consumer electronics like camera lenses or drone gimbals, this bearing’s 2.5mm width fits snugly into compact designs. The all-stainless build resists wear from frequent adjustments.
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