Primarily intended to drive logistics systems, RO2 series achieves 20 reduction ratios from 5.2:1 to 51.5:1 with 2 gear sets: bevel at input and helical at output. One-piece housing and fixing holes promote torsional rigidity to fittings. Sizes include RO02, RO12, RO22, and RO32 with respective max torque ratings of 120, 120, 330, and 550 Nm and hollow output shafts of 25, 30, 35, and 40 mm.