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Metric Size Miniature Flanged Ball Bearings SMF74
Metric Size Miniature Flanged Ball Bearings SMF74

Metric Size Miniature Flanged Ball Bearings SMF74

The SMF74 is a compact radial ball bearing with a 4mm bore and 7mm outer diameter, crafted entirely from stainless steel for durability. It supports radial loads up to 54 lbf and can spin at an impressive 54,000 RPM.

Its open design and ABEC1 tolerance ensure smooth operation, while the stainless steel cage adds strength. The bearing requires lubrication for optimal performance but handles temperatures from -30°C to 110°C.

With a lightweight build of just 0.3g, it’s ideal for small, high-speed devices like precision instruments or miniature motors. The flange design helps keep it securely in place during operation.

Compliant with RoHS and REACH standards, this bearing is a reliable choice for applications needing both speed and durability. Its small size makes it perfect for tight spaces where performance can’t be compromised.

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Product Parameters

  • Part Number SMF74
  • Brand TFL
  • System of Measurement Metric
  • Bearing Type Ball
  • Bore Dia 4 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 7 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 2 mm
  • Width Tolerance -0.12mm to 0
  • Flange Outer Dia 8.2 mm
  • Flange Thickness 0.6 mm
  • Radial Clearance 0.002mm to 0.013mm
  • Ball Qty 8
  • 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 54 lbf
  • Static Radial Load 19 lbf
  • Max Speed 54000 rpm
  • Temperature Range -30° to 110 °C
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Weight 0.3 g
  • Price($) 1.62

Features

How Does SMF74 Bearing Achieve High-Speed Performance?

SMF74 Bearing is crafted with stainless steel rings and balls, ensuring smooth operation at speeds up to 54,000 rpm.
Its single-row design with eight precision balls reduces friction, enhancing efficiency in radial load applications.

The open seal type allows for easy lubrication, maintaining performance in various temperature ranges.
With a dynamic radial load capacity of 54 lbf, it delivers reliable performance in compact spaces.

SMF74 Bearing’s lightweight design at just 0.3 grams makes it ideal for precision instruments.
The stainless steel cage ensures alignment and durability, even under continuous high-speed use.

Application

Common Applications of SMF74 Bearing
SMF74 Bearing is widely used in small electric motors, particularly in devices like cooling fans and miniature pumps where compact size matters. Its stainless steel construction ensures reliable performance in damp or corrosive environments.

How Does SMF74 Bearing Support High-Speed Operations?
With a maximum speed of 54,000 rpm, SMF74 Bearing excels in precision instruments like dental drills or optical encoders. The open design simplifies relubrication, extending service life in continuous-use applications.

Perfect Fit for Automation: SMF74 Bearing
In robotic joints and 3D printer extruders, SMF74 Bearing’s 4mm bore provides smooth radial motion for delicate positioning tasks. The flange design offers added stability during rapid directional changes.

Medical vs Industrial: Where SMF74 Bearing Excels
While SMF74 Bearing performs well in industrial sensors, its true strength lies in medical devices like insulin pumps due to contamination-resistant stainless steel. The 0.3g weight minimises inertia in portable equipment.

Essential Roles of SMF74 Bearing
SMF74 Bearing’s 2mm width makes it ideal for space-constrained applications such as camera lens mechanisms. Eight stainless steel balls distribute loads evenly, preventing premature wear in vibrating environments.

Q&A

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