5:1 planetary — 195 N.m continuous, 312 N.m peak
The GBX1200051404F is a Schneider Electric planetary gearbox with straight-cut teeth, 120 mm housing diameter, and a 5:1 reduction ratio. Continuous output torque is 195 N.m at 100 rpm and 30 °C; maximum intermittent torque reaches 312 N.m under the same conditions — the margin between continuous and peak tells you this box handles occasional overloads without immediate derating, but sustained duty stays at the lower figure. Rated service life is 30,000 hours at 100 rpm and 30 °C, lubricated for life — no maintenance schedule for oil changes, which simplifies installation in sealed or hard-to-access positions on a conveyor or indexing table.
Torque, forces, and backlash — what the numbers mean for fit
Maximum radial force Fr is 1500 N applied at mid-span on the output shaft for the 30,000-hour life target, or 2000 N if you accept a 10,000-hour service interval. Maximum axial force Fa is 2100 N for the longer life, 2800 N for the shorter. These are the limits that govern overhung load capacity — a sprocket or pulley mounted on the output shaft must stay within these to avoid bearing overload. Torsional backlash is 8 arc-min maximum, and torsional rigidity is 12 N.m/arcmin. For a positioning axis where reversal accuracy matters — a pick-and-place or rotary indexer — the 8 arc-min window means the output shaft can rotate about 0.13° before the gear train loads up. That is acceptable for many material-handling moves but too loose for a servo-driven rotary table needing sub-arc-minute repeatability. Efficiency is 94 %, which is typical for a single-stage planetary with straight teeth. The 6 % loss shows up as heat in the housing — the black anodized aluminium body (120 mm OD) dissipates it, but in a confined enclosure or at sustained peak torque the ambient temperature rise needs checking against the -25 to 90 °C operating range. Noise level is 65 dB at 1 m, no-load — straight-cut gears are inherently noisier than helical, so this figure is a baseline; under load the noise increases. The IP54 rating on the shaft output means the seal keeps out dust and splashing water, but the housing itself is not sealed — mount it where washdown does not hit the body directly.
Obsolete — sourcing through independent channels
Schneider Electric lists the GBX1200051404F as obsolete. The part is available through independent surplus and broker channels — quantities are lot-specific and confirmed at RFQ. No pin-compatible or footprint-equivalent replacement is documented by the manufacturer, so a substitution would require re-evaluating the mounting interface and shaft dimensions. The shaft material is C45 carbon steel, the housing is black anodized aluminium, and the gearbox is lubricated for life — no field maintenance provisions.