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Metric Size Miniature Flanged Ball Bearings SF685 2rs
Metric Size Miniature Flanged Ball Bearings SF685 2rs

Metric Size Miniature Flanged Ball Bearings SF685 2rs

The SF685 2RS is a small, sealed ball bearing with a 5mm bore and 11mm outer diameter, crafted entirely from stainless steel for durability. It handles radial loads up to 123 lbf and spins at speeds up to 40,500 RPM, making it suitable for high-speed applications.

Its double rubber seals keep out dirt and moisture, while the stainless steel cage ensures smooth operation. The bearing works in temperatures from -30°C to 110°C and requires regular lubrication for optimal performance.

With a compact width of just 5mm and a lightweight design at 2.15g, it’s ideal for small machinery or precision instruments. The flange adds extra stability during installation.

Compliant with RoHS and REACH standards, this bearing is a reliable choice for applications like electric motors or small gearboxes where space is limited.

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Product Parameters

  • Part Number SF685 2rs
  • Brand TFL
  • System of Measurement Metric
  • Bearing Type Ball
  • Bore Dia 5 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 11 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 5 mm
  • Width Tolerance -0.12mm to 0
  • Flange Outer Dia 12.5 mm
  • Flange Thickness 1 mm
  • Radial Clearance 0.002mm to 0.013mm
  • Ball Qty 8
  • Ball Dia 1.5880 mm
  • For Load Direction Radial
  • Construction Single Row
  • Inner Ring Type Standard
  • Seal Type Sealed
  • Tolerance Class ABEC1
  • Radial Clearance Trade No MC3
  • Ring Material Stainless Steel
  • Ball Material Stainless Steel
  • Cage Material Stainless Steel
  • Dynamic Radial Load 123 lbf
  • Static Radial Load 46 lbf
  • Max Speed 40500 rpm
  • Temperature Range -30° to 110 °C
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Weight 2.15 g
  • Shield Material Nitrile Rubber
  • Price($) 1.62

Features

How Does SF685 2rs Bearing Reduce Friction?

SF685 2rs Bearing features stainless steel rings and balls, ensuring smooth operation with minimal friction.
Its sealed design protects against contaminants, maintaining performance in various environments.
With a dynamic radial load capacity of 123 lbf, it handles moderate loads efficiently.
The ABEC1 tolerance class ensures reliable precision for everyday applications.

Engineered for Precision: SF685 2rs Bearing

SF685 2rs Bearing is crafted with a single-row design, offering consistent radial load support.
The stainless steel construction resists corrosion, making it suitable for diverse conditions.
Its compact size and lightweight design (2.15 g) make it ideal for small machinery.
The bearing operates smoothly at speeds up to 40,500 rpm, balancing speed and durability.

What Makes SF685 2rs Bearing Suitable for High-Speed Applications?

SF685 2rs Bearing’s stainless steel components ensure durability even at high speeds.
The nitrile rubber seal keeps out dust and moisture, enhancing longevity.
With a radial clearance of 0.002mm to 0.013mm, it provides precise performance.
Its lightweight design reduces inertia, making it perfect for high-speed machinery.

Application

Common Applications of SF685 2rs Bearing
SF685 2rs Bearing is widely used in small electric motors, such as those found in cooling fans or power tools, thanks to its compact size and sealed design. The stainless steel construction ensures durability in humid or corrosive environments.

In automation systems, SF685 2rs Bearing supports precise movements in components like robotic arms or 3D printers. Its high-speed capability makes it suitable for applications requiring smooth, consistent rotation.

For medical devices, SF685 2rs Bearing’s quiet operation and reliability are ideal for equipment like dental drills or lab instruments. The nitrile rubber seal helps keep contaminants out, extending its service life.

In consumer electronics, SF685 2rs Bearing can be found in devices like printers or small appliances, where its low maintenance and long lifespan are valued. The metric sizing ensures easy integration with various international designs.

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