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Metric Size Miniature Flanged Ball Bearings SMF84 2rs

Metric Size Miniature Flanged Ball Bearings SMF84 2rs

The SMF84 2rs is a compact radial ball bearing with a 4mm bore and 8mm outer diameter, crafted entirely from stainless steel for durability. It handles radial loads up to 68 lbf and spins remarkably fast, reaching speeds of 50,400 RPM.

Its sealed design with nitrile rubber shields keeps out dust and moisture, while the stainless steel cage ensures smooth operation. The bearing operates reliably in temperatures from -30°C to 110°C.

With a lightweight build at just 0.47g, it’s ideal for small, high-speed applications like miniature motors or precision instruments. The flange adds stability, making installation easier in tight spaces.

Compliant with RoHS and REACH standards, this bearing is a practical choice for maintenance-free performance in demanding environments. Its ABEC1 tolerance ensures consistent quality for everyday use.

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Product Parameters

  • Part Number SMF84 2rs
  • Brand TFL
  • System of Measurement Metric
  • Bearing Type Ball
  • Bore Dia 4 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 8 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 3 mm
  • Width Tolerance -0.12mm to 0
  • Flange Outer Dia 9.2 mm
  • Flange Thickness 0.6 mm
  • Radial Clearance 0.002mm to 0.013mm
  • Ball Qty 7
  • Ball Dia 1.2000 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 68 lbf
  • Static Radial Load 23 lbf
  • Max Speed 50400 rpm
  • Temperature Range -30° to 110 °C
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Weight 0.47 g
  • Shield Material Nitrile Rubber
  • Price（$） 1.62
Metric Size Miniature Flanged Ball Bearings SMF84 2rs dimension drawing
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Features

How Does SMF84 2rs Bearing Achieve High-Speed Performance?

SMF84 2rs Bearing is crafted with stainless steel rings and balls, ensuring smooth operation at high speeds.
Its maximum speed of 50,400 rpm makes it suitable for precision applications requiring rapid rotation.
The sealed design protects against contaminants, maintaining performance in various environments.
With a dynamic radial load capacity of 68 lbf, it balances speed and durability effectively.

Application

Practical Applications of SMF84 2rs Bearing
SMF84 2rs Bearing is commonly used in small electric motors, such as those found in cooling fans or miniature pumps, where its compact size and sealed design prevent dust ingress. The stainless steel construction ensures longevity even in humid environments.

In consumer electronics, SMF84 2rs Bearing provides smooth rotation for devices like handheld fans or precision tools, thanks to its low friction and high-speed capability. Its lightweight design makes it ideal for portable gadgets.

For automation systems, SMF84 2rs Bearing fits well in compact robotic joints or small conveyor guides, offering reliable performance with minimal maintenance. The sealed design helps keep contaminants out in dusty workshop conditions.

Medical devices like dental handpieces often utilise SMF84 2rs Bearing due to its corrosion-resistant materials and consistent performance at high speeds. The small footprint allows integration into tight spaces without compromising reliability.

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