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Metric Size Miniature Flanged Ball Bearings SF691x

Metric Size Miniature Flanged Ball Bearings SF691x

The SF691x is a small radial ball bearing with a 1.5mm bore and 5mm outer diameter, crafted entirely from stainless steel for durability. It handles radial loads up to 29 lbf and spins at impressive speeds up to 76,500 RPM.

Its open design allows for easy lubrication, while the stainless steel cage ensures smooth operation. The bearing includes a flange for secure mounting, with a flange outer diameter of 6.5mm.

With a radial clearance of 0.002mm to 0.013mm, it offers precise performance in compact spaces. Ideal for small devices like precision instruments or miniature motors where high-speed rotation is needed.

Weighing just 0.26g, it’s lightweight yet robust. Compliant with RoHS and REACH standards, it’s safe for various applications. Suitable for temperatures ranging from -30°C to 110°C.

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Product Parameters

  • Part Number SF691x
  • Brand TFL
  • System of Measurement Metric
  • Bearing Type Ball
  • Bore Dia 1.5 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 5 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 2 mm
  • Width Tolerance -0.12mm to 0
  • Flange Outer Dia 6.5 mm
  • Flange Thickness 0.6 mm
  • Radial Clearance 0.002mm to 0.013mm
  • Ball Qty 6
  • Ball Dia 1.0000 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 29 lbf
  • Static Radial Load 8 lbf
  • Max Speed 76500 rpm
  • Temperature Range -30° to 110 °C
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Weight 0.26 g
  • Price（$） 19.8
Metric Size Miniature Flanged Ball Bearings SF691x dimension drawing
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Features

How Does SF691x Bearing Achieve High-Speed Performance?

SF691x Bearing is crafted with stainless steel rings and balls, ensuring smooth operation at high speeds.
Its maximum speed of 76,500 rpm makes it suitable for precision applications requiring rapid rotation.

The single-row design and open seal type reduce friction, enhancing efficiency during operation.
With a dynamic radial load capacity of 29 lbf, it handles moderate loads reliably.

SF691x Bearing’s compact dimensions (1.5 mm bore, 5 mm outer diameter) make it ideal for small-scale machinery.
The stainless steel cage maintains ball alignment, contributing to long service life.

Operating within a temperature range of -30° to 110°C, SF691x Bearing performs well in varied conditions.
Its lightweight design (0.26 g) ensures minimal impact on overall system weight.

Application

Common Applications of SF691x Bearing
SF691x Bearing is widely used in small precision instruments, such as watch movements and miniature motors, where its compact size and high-speed capability are essential. The stainless steel construction ensures durability in delicate applications.

In consumer electronics, SF691x Bearing can be found in devices like small cooling fans and handheld gadgets, providing smooth rotation with minimal noise. Its lightweight design makes it ideal for portable devices.

For medical devices, SF691x Bearing offers reliable performance in equipment like dental tools and diagnostic instruments, where precision and hygiene are critical. The open design allows for easy cleaning and maintenance.

Automation systems benefit from SF691x Bearing in components like small robotic arms and sensors, where its high-speed operation and low friction enhance efficiency. The metric sizing ensures compatibility with various international standards.

SF691x Bearing is also suitable for hobbyist projects, such as model making and DIY gadgets, due to its affordability and ease of use. The stainless steel materials provide good resistance to corrosion in various environments.

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