right angle 90 degree planetary gear reducer 7 arcmin Ratio 3:1 to 10:1 for nema34 stepper motor input shaft 14mm NOTE: 1st: Please write me your ratio after order. We can offer Ratios: 1 stage reducer ratio: 3:1,4:1,5:1,7:1,10:1 2nd:We will ship the planetary reducer as the standard dimension as follows: Frame Shaft diameter Rabbet diagonal Screw hole distance 90mm 14mm 73mm 98.4mm 3rd: If any question on the dimension of the planetary reducer, please write me the dimension drawing of your motor. We offer customize service for your motor and can help you choose the suitable planetary reducer for your motor. 4th: If you need round output frame gearbox, please write me . Here is the parameters of the planetary reducer: