+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
Metric Size Standard Miniature Ball Bearings S681

Metric Size Standard Miniature Ball Bearings S681

The S681 is a compact miniature ball bearing with a 1mm bore and 3mm outer diameter, crafted entirely from stainless steel for durability. It handles radial loads up to 17 lbf and spins smoothly at speeds up to 117,000 RPM.

Its open design requires lubrication but allows for easy maintenance, while the stainless steel cage ensures consistent performance. The bearing operates well in temperatures ranging from -30°C to 110°C.

With a lightweight design at just 0.03g, it’s ideal for small, precision applications like miniature motors or delicate instruments. Compliant with RoHS and REACH standards, it’s a reliable choice for eco-conscious projects.

The ABEC1 tolerance and MC3 radial clearance make it suitable for applications where moderate precision is needed without excessive friction.

Get A Free Quote
    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number S681
  • Brand TFL
  • Interchangeable EZO
  • Bore Dia 1 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 3 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 1 mm
  • Width Tolerance -0.12mm to 0
  • Ball Qty 6
  • Ball Dia 0.6000 mm
  • Radial Clearance 0.002mm to 0.013mm
  • Seal Type Open
  • System of Measurement Metric
  • Bearing Type Ball
  • For Load Direction Radial
  • Construction Single Row
  • Inner Ring Type Standard
  • Tolerance Class ABEC1
  • Radial Clearance Trade No MC3
  • Ring Material Stainless Steel
  • Ball Material Stainless Steel
  • Cage Material Stainless Steel
  • Dynamic Radial Load 17 lbf
  • Static Radial Load 4 lbf
  • Temperature Range -30° to 110 °C
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Max Speed 117000 rpm
  • Weight 0.03 g
  • Price（$） 16.2
Metric Size Standard Miniature Ball Bearings S681 dimension drawing
Download DWG Download PDF

Features

Why Choose S681 Bearing for Precision Tasks?

S681 Bearing is crafted with stainless steel rings and balls, ensuring smooth operation in precision applications.
Its compact size of 1 mm×3 mm×1 mm makes it ideal for miniature devices requiring reliable radial load support.
The ABEC1 tolerance class guarantees consistent performance, while the open design simplifies lubrication.
With a maximum speed of 117,000 rpm, it delivers efficiency without compromising durability.

Application

Common Applications of S681 Bearing
S681 Bearing is widely used in small electronic devices like miniature fans and precision instruments due to its compact 1mm×3mm×1mm size. The stainless steel construction ensures durability in everyday use.

How Does S681 Bearing Improve Performance?
In automation systems, S681 Bearing supports smooth rotation in tiny components like 3D printer nozzles or robotic arm joints. Its ABEC1 tolerance provides reliable accuracy for delicate tasks.

Perfect Fit for Automation: S681 Bearing
You’ll often find S681 Bearing in dental tools or watch mechanisms where space is limited but performance matters. The open design allows easy lubrication for maintenance.

Medical vs Industrial: Where S681 Bearing Excels
S681 Bearing works well in medical devices like insulin pumps, while also handling light industrial loads in measuring equipment. Its 117,000 rpm rating suits high-speed applications.

Q&A

SEND INQUIRY