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Metric Size Miniature Flanged Ball Bearings SF688 2rs

Metric Size Miniature Flanged Ball Bearings SF688 2rs

The SF688 2RS is a compact, sealed ball bearing with an 8mm bore and 16mm outer diameter, crafted entirely from stainless steel for durability. It handles radial loads up to 216 lbf and spins at speeds up to 32,400 RPM, making it suitable for high-speed applications.

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

With a lightweight design at just 4.51g, it’s ideal for small machinery or precision instruments where space is limited. The flange adds extra stability during installation. Compliant with RoHS and REACH standards, it’s a reliable choice for various industrial uses.

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Product Parameters

  • Part Number SF688 2rs
  • Brand TFL
  • System of Measurement Metric
  • Bearing Type Ball
  • Bore Dia 8 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 16 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 5 mm
  • Width Tolerance -0.12mm to 0
  • Flange Outer Dia 18 mm
  • Flange Thickness 1.1 mm
  • Radial Clearance 0.002mm to 0.013mm
  • Ball Qty 10
  • Ball Dia 2.0000 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 216 lbf
  • Static Radial Load 96 lbf
  • Max Speed 32400 rpm
  • Temperature Range -30° to 110 °C
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Weight 4.51 g
  • Shield Material Nitrile Rubber
  • Price（$） 1.62
Metric Size Miniature Flanged Ball Bearings SF688 2rs dimension drawing
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Features

How Does SF688 2rs Bearing Reduce Friction?

SF688 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.

The ABEC1 tolerance class guarantees consistent precision, ideal for high-speed applications.
With a maximum speed of 32,400 rpm, it delivers reliable performance under radial loads.

The nitrile rubber shield enhances durability, making it suitable for long-term use.
Its compact size and lightweight design make it easy to integrate into various systems.

Application

Common Applications of SF688 2rs Bearing
SF688 2rs Bearing is widely used in small electric motors, particularly in appliances like cooling fans and power tools, where its sealed design keeps out dust and moisture. The stainless steel construction ensures long-lasting performance even in damp environments.

In automation systems, SF688 2rs Bearing supports precise movements in components like robotic arms and 3D printers. Its compact size and high-speed capability make it ideal for space-constrained applications requiring smooth rotation.

For consumer electronics, SF688 2rs Bearing is a reliable choice in devices such as printers and small household gadgets. The nitrile rubber seal helps maintain quiet operation while protecting against contaminants.

Medical devices like handheld diagnostic tools benefit from SF688 2rs Bearing’s consistent performance and corrosion-resistant materials. The ABEC1 tolerance ensures sufficient precision for most non-critical medical applications.

In automotive accessories, SF688 2rs Bearing can be found in small actuators or dashboard components. Its lightweight design and durability make it suitable for auxiliary systems where space and reliability are key.

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