All bold-marked "preferred gearboxes" sized A1 may be quicker than other gearboxes.
Ratios of shaft d1
i = n1:n2 = 3:1
Ratios of shaft d2
i = n2:n1 = 1:3
Ratios of shaft d3
i = n3:n2 = 135:1 und i = n3:n1 = 45:1
7 gearbox sizes
Max. torque 2500 Nm
Max. speed at shaft d1
3000 min-1
Max. speed at shaft d3
3000 min-1
Coaxial input and output
Torques and permissible radial loads (pdf)
Dimensions and backlash (pdf)
Inertia (pdf)
Using multi-start worm gears, the speed modulation ratio may be reduced.