Round physique High Precision Helical gear planetary gearbox reducer for 130 body 1kw 2kw AC servo motor input shaft 22mmPLEASE READ THE FOLLOWING NOTICE BEFORE ORDER:1st:Reduction Ratioplease want the ratio that you need. If you need other ratios, please ask earlier than order.if you've got question, please write to ask.2nd:Input SizeWe will deliver the planetary reducer as the standard measurement as follows:FrameShaft diameter of motorRabbetScrew gap distance130mm22mm110mmφ=145mmIf any query on the dimension of the planetary reducer, please write me the measurement drawing of your motor. We provide customize service to your motor and can aid you prefer the acceptable planetary reducer in your motor.3rd: backlash .it's P2 grade .if you would like P1 precision, please write to ask .Here is the parameters of the planetary reducer: