The GBX0600040554F: This planetary gearbox delivers a 4:1 reduction, stepping motor speed down and torque up by that factor. The continuous output torque is 38 N.m at 100 rpm — that is the load it can sustain indefinitely at 30 °C ambient without exceeding the 30,000-hour service life target. For peak or intermittent loads, the maximum output torque reaches 61 N.m at the same speed and temperature. The 94 % efficiency means 6 % of the input power is lost as heat — relevant for thermal budgeting in a sealed enclosure.
Mechanical constraints — backlash, forces, and stiffness
Maximum torsional backlash is 16 arc.min — this is the lost motion at the output when reversing direction. For positioning applications requiring tighter repeatability, a lower-backlash gearbox would be needed. The output shaft can handle 450 N axial force and 340 N radial force (force applied mid-shaft) over the full 30,000-hour service life at 100 rpm. Torsional rigidity is 2.3 N.m/arcmin, giving a measure of how much the gearbox twists under load.
Sourcing reality — obsolete but available
Schneider Electric lists this GBX series planetary gearbox as obsolete. The gearbox is lubricated for life (no maintenance refill), operates from -25 °C to 90 °C ambient, and carries IP54 protection at the shaft output — suitable for dusty or splash-prone environments.