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Metric Size Miniature Flanged Ball Bearings SMF84

Metric Size Miniature Flanged Ball Bearings SMF84

The SMF84 is a compact radial ball bearing with a 4mm bore and 8mm outer diameter, crafted entirely from stainless steel for durability. It supports radial loads up to 68 lbf and spins at speeds up to 50,400 RPM, making it suitable for high-speed applications.

Its open design allows for easy lubrication, while the stainless steel cage ensures smooth operation. The bearing features a small flange for secure mounting, with a flange diameter of 9.2mm.

With a radial clearance of 0.002mm to 0.013mm, it offers precise performance in tight spaces. Ideal for small devices like precision instruments or miniature motors where space and speed are key.

Weighing just 0.47g, it’s lightweight yet robust. Compliant with RoHS and REACH standards, it’s safe for various industrial uses. Works well in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number SMF84
  • 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 2 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 Open
  • 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
  • Price（$） 1.62
Metric Size Miniature Flanged Ball Bearings SMF84 dimension drawing
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Features

Performance Features of SMF84 Bearing

SMF84 Bearing is crafted with stainless steel rings and balls, offering excellent resistance to corrosion.
Its compact design with a 4 mm bore and 8 mm outer diameter makes it ideal for small, precision applications.

The open seal type allows for easy lubrication, ensuring smooth operation at high speeds up to 50,400 rpm.
With a dynamic radial load capacity of 68 lbf, it delivers reliable performance in demanding conditions.

SMF84 Bearing’s stainless steel cage maintains ball alignment, reducing wear and extending its service life.
The ABEC1 tolerance class ensures consistent performance, making it suitable for various radial load applications.

Application

Common Applications of SMF84 Bearing
SMF84 Bearing is widely used in small electric motors, such as those found in drones or miniature fans, thanks to its compact size and high-speed capability. The stainless steel construction ensures it performs well in humid or corrosive environments.

In precision instruments like optical devices or lab equipment, SMF84 Bearing offers smooth rotation with minimal friction. Its open design simplifies lubrication, making maintenance straightforward for technicians.

For consumer electronics, SMF84 Bearing is a reliable choice in devices like handheld printers or miniature cameras. The lightweight design and ABEC1 tolerance balance cost and performance for everyday use.

Automotive applications include small actuators or sensors, where SMF84 Bearing’s durability meets the demands of vibration-prone environments. The metric sizing ensures compatibility with global component standards.

In robotics, SMF84 Bearing supports delicate movements in robotic arms or miniature grippers. The high RPM rating makes it suitable for repetitive tasks without compromising precision.

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