... &measure range High initial unbalance permitted High precision&efficiency Belt Drive Balancing Machine: PHQ-2000 Belt Driven Balancing MachineProduction Description• ... of good-sized and medium-sized motors, textile machinery, pump impeller ,rubber roller ,cylinder , fans, shaft, etc .. Driven by belt,it ... Achievable Residual Unbalance Amount (emar)0.5g· mm/kg Belt Drive Balancing Machine (PHQ-2000)