five arcmin Helical gear planetary reducer gearbox 3:1 to 10:1 for nema34 750W AC servo motor enter shaft 16mmPLEASE READ THE FOLLOWING NOTICE BEFORE ORDER:1st:Reduction RatioThe reduction ratio of the planetary reducer you ordered is:1 degree reducer ratio: 3:1,4:1,5:1,7:1,8:1,10:1The Ratios continuously stock offer: 3:1,4:1,5:1,7:1,8:1,10:1You should purchase directly.Please depart me message for the reduction ratio of the planetary reducer after order!2nd:Input SizeWe will ship the planetary reducer as the ordinary size as follows:FrameShaft diameter of motorRabbetdiagonal Screw gap distance90mm16mm80mm100mmIf any question on the size of the planetary reducer, please write me the measurement drawing of your motor. We provide customize carrier to your motor and might provide help to want the suitable planetary reducer on your motor.The matched motor's measurement as below:3rd:ParametersWe can supply larger precision version corresponding to backlash 3 arc-min( P1 grade), 1 arc-min (P0 grade);If you've got inquiry to customise the precision ,input and output dimensions, discount ratio please write meHere is the parameters of the planetary reducer: