PF 040 L2 -25-P2-S2 gearbox, the output shaft diameter is 8mm. It is used for 50W-100W AC servo motor, input diameter is 8mm.Gearbox DrawingGearbox Output TypeGearbox Performance ParametersProduct: PF 040 L2 -25-P2-S2 gearboxOutput shaft diameter: 8mmInput diameter: 8mmApplication: For 50W-100W AC servo motor