WPF 080 L1-5-P2-S2 gearbox, the output shaft diameter is 19mm. It is used for 80mm, 110mm AC servo motor, input diameter is 19mm.Gearbox DrawingGearbox Output TypeGearbox Performance ParametersProduct type: Precision planetary gearboxSeries: WPF seriesModel: WPF 080 L1-5-P2-S2Output shaft diameter: 19mmInput diameter: 19mmCompatible motor sizes: 80mm, 110mm AC servo motor