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Metric Size Miniature Flanged Ball Bearings SF686

Metric Size Miniature Flanged Ball Bearings SF686

The SF686 is a compact radial ball bearing with a 6mm bore and 13mm outer diameter, crafted entirely from stainless steel for corrosion resistance. It supports radial loads up to 186 lbf and spins at speeds up to 36,000 RPM, making it suitable for high-speed applications.

With an open design and ABEC1 tolerance, it offers smooth operation while allowing easy lubrication. The stainless steel cage ensures durability, and the flange provides added stability during mounting.

This bearing operates in temperatures from -30°C to 110°C, ideal for small machinery or precision instruments. Its lightweight design at just 2.21g makes it easy to handle.

Compliant with RoHS and REACH standards, it’s a reliable choice for environments requiring cleanliness and corrosion resistance. Perfect for small motors or medical devices where precision and speed are key.

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Product Parameters

  • Part Number SF686
  • Brand TFL
  • System of Measurement Metric
  • Bearing Type Ball
  • Bore Dia 6 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 13 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 3.5 mm
  • Width Tolerance -0.12mm to 0
  • Flange Outer Dia 15 mm
  • Flange Thickness 1 mm
  • Radial Clearance 0.002mm to 0.013mm
  • Ball Qty 8
  • Ball Dia 2.0000 mm
  • For Load Direction Radial
  • Construction Single Row
  • Inner Ring Type Standard
  • Seal Type Open
  • Tolerance Class ABEC1
  • Radial Clearance Trade No MC3
  • Ring Material Stainless Steel
  • Ball Material Stainless Steel
  • Cage Material Stainless Steel
  • Dynamic Radial Load 186 lbf
  • Static Radial Load 72 lbf
  • Max Speed 36000 rpm
  • Temperature Range -30° to 110 °C
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Weight 2.21 g
  • Price（$） 1.62
Metric Size Miniature Flanged Ball Bearings SF686 dimension drawing
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Features

How Does SF686 Bearing Reduce Friction?

SF686 Bearing features a stainless steel construction, ensuring smooth operation with minimal friction.
Its precision design includes eight stainless steel balls, optimised for radial load distribution.

The open seal type allows for easy lubrication, maintaining performance at high speeds up to 36,000 rpm.
With a radial clearance of 0.002mm to 0.013mm, it ensures consistent and reliable rotation.

Designed for a temperature range of -30° to 110°C, SF686 Bearing performs well in various environments.
Its lightweight design at just 2.21g makes it suitable for compact applications.

Application

Common Applications of SF686 Bearing
SF686 Bearing is widely used in small electric motors, such as those found in cooling fans and power tools, thanks to its compact size and high-speed capability. The stainless steel construction ensures it performs well in humid or corrosive environments.

In robotics, SF686 Bearing is a go-to choice for lightweight joints and pivots, where precision and low friction are key. Its open design allows for easy lubrication, extending service life in continuous operation.

For medical devices like dental handpieces, SF686 Bearing offers smooth rotation at high speeds, crucial for precision procedures. The ABEC1 tolerance ensures consistent performance without unnecessary complexity.

In consumer electronics, SF686 Bearing can be found in devices like hard drives and small printers, where reliability and quiet operation matter. The flange design adds stability, preventing misalignment during assembly.

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