16:1 planetary reduction, 260 N.m continuous — the working envelope
The GBX1200161001F is a Schneider Electric planetary gearbox with a 16:1 reduction ratio, straight-tooth gearing, and a 120 mm outer diameter housing. It delivers 260 N.m continuous output torque at 100 rpm and 30 °C — the figure that governs steady-state sizing for conveyor, indexing, or positioning axes. Peak capability reaches 416 N.m at the same speed and temperature, but the 30,000-hour service life rating is tied to the continuous torque envelope. Exceeding 260 N.m continuously shortens the life below the 30,000-hour baseline.
Backlash, rigidity, and load limits — fit for precision axes
Maximum torsional backlash is 12 arc.min, with a torsional rigidity of 13 N.m/arcmin. For a positioning axis, this means the gearbox wind-up under a 260 N.m load is about 20 arc.min — budget that into the total system compliance budget. Axial load capacity is 2100 N for the 30,000-hour life, rising to 2800 N for a 10,000-hour duty. Radial load at mid-span on the output shaft is 1500 N for the longer life, 2000 N for the shorter. These limits assume 100 rpm at 30 °C; higher speeds reduce the allowable loads.
Obsolete — sourcing through independent channels
Schneider Electric lists the GBX1200161001F as obsolete. The gearbox is available through independent surplus and broker channels — quantities are lot-specific and confirmed at RFQ. For a BOM that requires this exact ratio and torque class, the only path is the secondary market. A functional replacement would need to match the 120 mm housing diameter, 16:1 ratio, and 260 N.m continuous rating — a different gearbox series will change the mounting interface and shaft dimensions.
94 % efficiency, 65 dB noise, IP54 shaft output
Efficiency is listed at 94 % — typical for a planetary stage at this ratio. The 6 % loss shows up as heat in the housing; at 260 N.m and 100 rpm the thermal dissipation is roughly 170 W, which the black anodized aluminium housing sinks to ambient across the -25 to 90 °C operating range. Noise level is 65 dB at 1 m, no-load — a straight-tooth planetary at this ratio is inherently noisier than a helical design. The IP54 rating on the shaft output means the seal keeps out dust and splashing water, but the gearbox is not rated for washdown or submersion.