4:1 planetary stage with 15 N.m continuous torque
The GBX0400040701F is a 40 mm diameter planetary gearbox with a 4:1 reduction ratio, delivering 15 N.m continuous output torque at 100 rpm and 30 °C. The straight-tooth design keeps backlash at 30 arcmin max — enough for positioning axes where repeatability matters more than zero-reversal error.
Efficiency, noise, and service life at rated load
Rated 94 % efficiency at full load — the planetary stage loses about 6 % of input power to friction and windage. Noise measures 55 dB at 1 m under no-load, which is quiet enough for lab or light industrial bench use without enclosure damping. Service life is 30,000 hours at 100 rpm and 30 °C ambient, with the gearbox lubricated for life — no maintenance oil changes. The IP54 shaft output keeps dust and splash out of the bearing cavity, but it is not washdown-rated.
Obsolete — sourced through independent channels
Schneider Electric lists this gearbox as obsolete. The part is available through independent surplus and broker channels; quantities are lot-specific and confirmed at RFQ. No pin-compatible drop-in replacement exists from the original manufacturer — a redesign or alternative frame size is needed for new builds.
Shaft loads and mounting constraints
Maximum radial force Fr is 200 N at 100 rpm for 10,000 hours, dropping to 160 N for the full 30,000-hour life — force applied at mid-distance from the output shaft. Axial force Fa follows the same derating curve: 200 N short-term, 160 N sustained. The C45 steel shaft handles standard keyed couplings within those limits. Ambient operating range is -25 to 90 °C, with the black anodized aluminium housing dissipating heat through natural convection. The 1 N.m/arcmin torsional rigidity means the shaft twists about 1 arcmin per N.m of applied torque — stiff enough for indexing tables under 15 N.m peak.