40 mm planetary gearbox with 4:1 reduction
The GBX0400041404F is a 40 mm diameter planetary gearbox from Schneider Electric's GBX series, offering a 4:1 reduction ratio in a straight-tooth configuration. It delivers 15 N.m continuous output torque at 100 rpm, with a maximum intermittent torque of 24 N.m under the same conditions. Rated efficiency sits at 94 %, meaning roughly 6 % of input power is lost as heat — relevant for thermal budgeting in a confined cabinet or when coupling to a servo motor near its thermal limit. The unit is lubricated for life and sealed to IP54 at the shaft output, so it handles dust and splash exposure without a regrease schedule.
Torque, backlash, and service life at rated speed
Continuous torque is 15 N.m at 100 rpm and 30 °C; the maximum output torque peaks at 24 N.m under the same conditions — useful for acceleration or momentary overloads during indexing moves. Maximum torsional backlash is 30 arc-minutes, which sets the positioning repeatability floor in open-loop applications. For a direct-drive indexing table, that backlash translates to about 0.5° of output slop — acceptable for conveyor positioning but not for precision rotary axes. Service life is rated at 30,000 hours at 100 rpm and 30 °C, dropping to 10,000 hours if axial or radial loads are pushed to the 200 N maximum. The radial force rating of 200 N is specified with the load applied at mid-distance on the output shaft. Torsional rigidity is 1 N.m/arcmin — a stiffness figure that governs windup under load. At 15 N.m continuous torque, expect about 15 arc-minutes of elastic deflection on top of the backlash.
Obsolete — sourcing through independent channels
Schneider Electric lists the GBX0400041404F as obsolete. Available through independent surplus and broker channels. Quantities are lot-specific and confirmed at RFQ — no stock-holding claim is made. The 40 mm diameter and 4:1 ratio are the critical fit dimensions; confirm the input shaft coupling and output bore before committing a BOM line.