PF 040 L1-5-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 type: Precision planetary gearboxSeries: PF seriesModel: PF 040 L1-5-P2-S2Output shaft diameter: 8mmInput diameter: 8mmApplication: For 50W-100W AC servo motor