Obsolete — sourcing through independent channels
Schneider Electric has marked the GBX1200041002F as obsolete, meaning the original production line has closed and no further manufacturing is planned.
The continuous output torque is 155 N.m at 100 rpm and 30 °C ambient — this is the sustained load the gearbox can carry without exceeding its thermal or mechanical limits. The maximum output torque reaches 248 N.m under the same conditions, intended for peak loads during acceleration or momentary overloads. Maximum torsional backlash is 8 arc.min, which defines the angular play between input and output when reversing direction. For positioning applications that require repeatable stops, this figure tells you the lost motion you must budget for in the servo loop or mechanical stop.
Service life and load ratings — sizing against the duty cycle
Rated service life is 30,000 hours at 100 rpm and 30 °C — the gearbox is lubricated for life, so no maintenance interval for grease changes applies. The maximum axial force Fa is 2100 N at 100 rpm over the full 30,000-hour life, or 2800 N if the application accepts a reduced 10,000-hour service window. Maximum radial force Fr is 1500 N at 100 rpm for the 30,000-hour life, measured at the midpoint of the output shaft. Both axial and radial limits drop if the speed exceeds 100 rpm — the gearbox bearings are the constraint, not the gear mesh.
Efficiency, noise, and environmental sealing
Listed efficiency is 94 %, meaning 6 % of the input power is lost as heat in the gear mesh and bearings. This is typical for a single-stage planetary with straight teeth at the 4:1 ratio. Noise level is 65 dB at 1 m, no-load — a moderate figure for a planetary gearbox of this diameter. The shaft output carries an IP54 rating, which means the seal at the output shaft resists dust ingress and splashing water but is not submersible. Housing is black anodized aluminium with a 120 mm external diameter; the shaft material is C45 carbon steel. Ambient operating range spans -25 °C to 90 °C.