Note: Different product models have diversified appearance, size and weight parameters. We have a wide range of harmonic reducers and also support customized harmonic reducers. You can touch customer support staff to obtain 3-d renderings and design size drawings.PG20-50Reduction ratio: 50Rated torque when inputting 2000r/min: 25 NmAllowable height torque when starting and stopping: 56 NmAllowable most value of average load torque: 34 NmMomentary allowable maximum torque: 98 NmAllowable maximum input speed: 6500Allowable average enter speed: 3500Moment of inertia: 0.193Backlash: 10ASPG20-80Reduction ratio: 80Rated torque when inputting 2000r/min: 34 NmAllowable peak torque when starting and stopping: 74 NmAllowable maximum value of average load torque: forty seven NmMomentary allowable most torque: 127 NmAllowable most enter speed: 6500Allowable average input speed: 3500Moment of inertia: 0.193Backlash: 10ASPG20-100Reduction ratio: 100Rated torque when inputting 2000r/min: forty NmAllowable height torque when beginning and stopping: 82 NmAllowable most price of average load torque: forty nine NmMomentary allowable maximum torque: 147 NmAllowable maximum input speed: 6500Allowable common enter speed: 3500Moment of inertia: 0.193Backlash: 10ASD