TSR090-3-S2-P2 19-70-90 90 Degree Right Angle Planetary Gearbox Reducer 1 level for 750w AC servo motor enter shaft 19mm PLEASE READ THE FOLLOWING NOTICE BEFORE ORDER:1st:Reduction RatioThe reduction ratio of the planetary reducer you ordered is: 1 degree reducer ratio: 3:1,4:1,5:1,7:1,10:12nd:Input SizeWe will deliver the planetary reducer because the usual size as follows:FrameShaft diameter of motorRabbetScrew gap distance80mm19mm70mmφ=90mmIf any question on the size of the planetary reducer, please write me the size drawing of your motor. We provide customize carrier in your motor and can assist you to desire the suitable planetary reducer for your motor.Here is the parameters of the planetary reducer: