80:1 planetary reduction with 260 N.m continuous rating
The GBX1200800704F is a Schneider Electric planetary gearbox delivering an 80:1 reduction ratio in a 120 mm diameter package. Continuous output torque is 260 N.m at 100 rpm and 30 °C, with a maximum intermittent rating of 416 N.m under the same conditions. Efficiency is listed at 94 %, which is typical for a single-stage planetary design at this ratio. The straight-tooth geometry keeps cost and backlash predictable, though it runs slightly louder than a helical at the same load — the noise level is 65 dB at 1 m, no-load.
Torque, backlash, and bearing load limits
The output shaft carries a maximum radial force (Fr) of 1500 N at 100 rpm for the 30000-hour service life, and 2000 N for a 10000-hour duty cycle. Axial force (Fa) limits are 2100 N and 2800 N respectively. Both are measured with force applied at the mid-point of the output shaft. Service life is 30000 hours at 100 rpm and 30 °C ambient — the gearbox is lubricated for life and sealed, with shaft output protection rated IP54. The housing is black anodized aluminium; the shaft is C45 steel.
Obsolete — sourcing through independent channels
Schneider Electric has marked the GBX1200800704F as obsolete. For BOM lines that still specify this exact reduction and torque class, the part is available through independent surplus and broker channels — quantities are lot-specific and confirmed at RFQ. No pin-compatible or parametric drop-in replacement is documented within the GBX family. A functional replacement would require re-evaluating the mounting flange, input shaft interface, and output bore dimensions against current Schneider or third-generation planetary gearbox ranges.