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Miniature Universal Joints

With an outer diameter as small as 8 mm, these mini joints are especially suitable for medical equipment, model making and many other applications in which space is restricted. Components with smaller diameters might also be available, depending on exact performance specifications.

Miniature Universal Joints

Originally developed in 303 Stainless Steel for a manually operated minimal invasive surgical instrument, the miniature joints are also available in various grades of stainless steel and alloy steel. The standard version has an operational angle of deflection of up to 35°. On request, Belden can develop modified versions of mini joints with a higher angle of deflection.

Miniature U Joint Size Chart

 ODOALB1B2Max Std AngleMaterial YokesMaterial Pins&Block
UJ-SS8x008240035°AISI 303AISI 416
UJ-SS8x048244435°AISI 303AISI 416
UJ-SS8-316x008240035°AISI 316LAISI 316L
UJ-SS8-316x048244435°AISI 316LAISI 316L
UJ-HD8x008240035°Alloy SteelAISI 416
UJ-HD8x048244435°Alloy SteelAISI 416
UJ-SS6x006200035°AISI 303AISI 416
UJ-SS6x036203335°AISI 303AISI 416
UJ-SS6-316x006200035°AISI 316LAISI 316L
UJ-SS6-316x036203335°AISI 316LAISI 316L

Most customers are familiar with our unique universal joint and drive shaft solutions for complex applications. But did you know that we also offer miniature joints for applications where space is restricted? Our miniature joints have an outside diameter as small as 6 mm and have a standard operational angle of 35 degrees.

Customize Your Mini Joint

Mini joint customization and double universal joints are available for operational angles above 35 degrees. While the original versions of the mini joint were developed in 303 and 316L Stainless Steel, we offer various grades of stainless steel and alloy steel.

Industries That Use Miniature U-Joints

Mini joints are particularly useful in medical equipment, but they’re also ideal for just about any application in which space is limited. You’ll find miniature joints used in industries like:

  • Aerospace
  • Defense
  • Medical
  • Motion Control, Robotics
  • Packaging & Conveying
  • Textiles
  • Utility Vehicles

Choose Belden Universal

We are an AS 9100D certified manufacturer of U-joints and driveshafts. Turn to Belden Universal with confidence for a solution to your design challenges. To set up a quick technical review call with us, give us a call at (708) 578-6997. You’re also welcome to request a quote or contact us here.