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Catalog : Arduino, Pi, Microcontrollers, 3D Printing and Kits : Arduino, Raspberry Pi and Microcontrollers : Accessories

Motor Shaft Flex Coupler - Aluminum, 5mm-8mm

Motor Shaft Flex Coupler - Aluminum, 5mm-8mm

SKU: AF-1176

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Connect this to that with a set-screw coupler. These couplers are made of machined aluminum and have a spiral cut that makes them slightly flexible so they can be fit to two shafts even if they are not perfectly co-linear and will help reduce binding effects. The way they're cut, they're a little springy in the X Y & Z linear axis but not in the rotational axis. That means that you won't get increased backlash - so they're suitable for precision CNC work.

This coupler will connect a 5mm diameter shaft to an 8mm diameter shaft. A perfect add on for our stepper motors. Comes with two sets of double set-screws (two per side) for secure attachment. You'll need a 2mm allen wrench to tighten/loosen the set-screws.


  • 25mm (length) x 18mm (diameter)
  • 5mm (inner dia.) to 8mm (inner dia.)
US$ 9.36 price
US$ 8.90 5 - 9 (5% Off)
US$ 8.42 10 + (10% Off)