Gear size 307 REMARK: The gearboxes has to be assembled and painted in our workshop. Ratio from i=3,43 up to i=2423 Torque from 6200 m2(Nm) to 15.000 m2(Nm) depending on ratio and n2xh. Output: Hollow shaft Ø100 for scrink disc or A80x74 with spline, output shaft Ø90 with key or B80x74 with spline.