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Metric Size Miniature Flanged Ball Bearings SF634 2rs

Metric Size Miniature Flanged Ball Bearings SF634 2rs

The SF634 2rs is a compact, sealed ball bearing with a 4mm bore and 16mm outer diameter, crafted entirely from stainless steel for durability. It handles radial loads up to 231 lbf and spins smoothly at speeds up to 32,400 RPM.

Its nitrile rubber seals keep dirt out while retaining lubrication, making it low-maintenance. The stainless steel cage and balls ensure consistent performance even in damp conditions.

With a lightweight design at just 5.98g, it’s ideal for small, fast-moving applications like electric motors or precision tools. The flange adds stability during installation.

Suitable for temperatures from -30°C to 110°C, this bearing meets RoHS and REACH standards. Its ABEC1 tolerance and MC3 clearance balance affordability with reliable performance for everyday use.

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Product Parameters

  • Part Number SF634 2rs
  • Brand TFL
  • System of Measurement Metric
  • Bearing Type Ball
  • Bore Dia 4 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 mm
  • Radial Clearance 0.002mm to 0.013mm
  • Ball Qty 7
  • Ball Dia 2.3810 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 231 lbf
  • Static Radial Load 85 lbf
  • Max Speed 32400 rpm
  • Temperature Range -30° to 110 °C
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Weight 5.98 g
  • Shield Material Nitrile Rubber
  • Price（$） 1.62
Metric Size Miniature Flanged Ball Bearings SF634 2rs dimension drawing
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Features

How Does SF634 2rs Bearing Reduce Friction?

SF634 2rs Bearing features a sealed design with stainless steel components, ensuring smooth radial movement.
Its seven precision balls reduce friction, enhancing efficiency in high-speed applications up to 32,400 rpm.
The nitrile rubber shield protects against contaminants, maintaining consistent performance.
With a dynamic radial load capacity of 231 lbf, it balances durability and precision.

Application

Common Applications of SF634 2rs Bearing
SF634 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 it handles everyday wear without rusting.

In automation systems, SF634 2rs Bearing supports precise movements in devices like 3D printers or robotic arms. Its high-speed capability (up to 32,400 rpm) makes it reliable for repetitive tasks.

For medical devices like dental tools or lab equipment, SF634 2rs Bearing’s nitrile rubber seal helps keep contaminants out. The ABEC1 tolerance ensures smooth operation in sensitive applications.

Around the home, you’ll find SF634 2rs Bearing in appliances like blenders or hairdryers. Its lightweight design (just 5.98g) doesn’t compromise on durability for daily use.

Q&A

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