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Stainless Steel Deep Groove Ball Bearings W 618/8

Stainless Steel Deep Groove Ball Bearings W 618/8

The W 618/8 is a compact stainless steel deep groove ball bearing, measuring 8mm by 16mm by 4mm. It handles radial loads up to 161 lbf and can spin at speeds up to 56,000 RPM.

Made entirely from stainless steel, it resists corrosion and works in temperatures from -30°C to 120°C. Its open design allows for easy lubrication when needed.

This single-row bearing is interchangeable with SKF models, making it a practical choice for replacements. Ideal for small machinery or instruments where space is limited.

Weighing just 3.1 grams, it’s lightweight yet durable. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number W 618/8
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 8 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 16 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 4 mm
  • Width Tolerance -0.12mm to 0
  • System of Measurement Metric
  • Bearing Type Ball
  • For Load Direction Radial
  • Construction Single Row
  • Seal Type Open
  • Tolerance Class P0
  • Radial Clearance Trade No CN
  • Ring Material Stainless Steel
  • Ball Material Stainless Steel
  • Cage Material Stainless Steel
  • Dynamic Radial Load 161 lbf
  • Static Radial Load 67 lbf
  • Temperature Range -30° to 120 °C
  • RoHS Compliant
  • REACH Compliant
  • Max Speed 56000 rpm
  • Weight 0.0031 kg
  • Price（$） 3.57
Stainless Steel Deep Groove Ball Bearings W 618/8 dimension drawing
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Features

Why Choose W 618/8 Bearing for Precision Tasks?

W 618/8 Bearing is crafted entirely from stainless steel, offering excellent corrosion resistance and durability.
Its compact size of 8 mm×16 mm×4 mm makes it ideal for applications where space is limited.
The single-row design ensures smooth radial load handling, with a dynamic radial load capacity of 161 lbf.
With a maximum speed of 56,000 rpm, it delivers reliable performance in high-speed scenarios.

Application

Common Applications of W 618/8 Bearing
W 618/8 Bearing is widely used in small industrial equipment, such as miniature motors and precision instruments, thanks to its compact 8 mm×16 mm×4 mm size and stainless steel construction. The open design ensures easy lubrication access, ideal for environments where maintenance is frequent.

In automotive applications, W 618/8 Bearing fits well in compact components like electric window mechanisms or dashboard instruments, offering reliable radial load support. Its metric sizing makes it a versatile choice for various vehicle models.

For consumer electronics, W 618/8 Bearing is often found in devices like cooling fans or small printers, where its low friction and durability enhance performance. The stainless steel material also resists corrosion in humid conditions.

Automation systems benefit from W 618/8 Bearing in robotic arms or 3D printers, where smooth rotation is essential. Its high-speed capability (up to 56,000 rpm) ensures efficient operation in dynamic setups.

Q&A

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