Hmmm

2Nm torque, 5:2 reduction, 5mm pitch screw gives a driving force of 0.63 tons.

Probably best if the belt fails before something else does :naughty:

Robin

How to calculate it...
! rev = 5/2.5 = 2mm
2mm/(2*pi)= 0.3183mm = 0.0003183m torque radius
2Nm/0.0003183m = 6283N = 0.63 tons