• Flex capability of the coupler removes stress when shafts are not aligned perfectly
  • Suitable for connecting two axis with different diameters, can also be connected with a motor axis, or connecting shafts of different diameters
  • Between the transmission member can do both screw can do model remote control boat propeller shaft and the motor power,flexibility of this coupler removes stress between motor and driving component
  • Compatible with NEMA 17 stepper motors (for 5mm shaft diameter)
  • Dimensions: 14 x 25mm/0.55 x 0.98"(Dia x L)

These were overall a little larger than expected. But will work great with out application.

These are absolutely perfect! I'm using them on those standard small stepper motors and connecting them to some lead screw rods to control some mechanical parts and they have held tight even through some pretty high stress situations. Very impressed with how well these work and I'll be ordering more just as soon as I need them :)

I redid my bearings as IGUS Drylin bearings, which have a little more resistance than standard steel linear bearings. Enough to cause undesireable backlash when using couplers that have that spiral cut in them. These removed the backlash and make the prints much more accurate.

Just as described, great value

just as expected

Seems like a solid product. Havent put it to use but its exactly like the description states. Very nice blue color and sturdy. 5 pieces

Nice pieces and worked as designed. What more can I say?

On time and as advertised. Can't ask for much more than that.