The GBX0400050701F is a 40 mm-diameter planetary gearbox with a 5:1 reduction ratio, delivering 14 N.m continuous output torque at 100 rpm (30 °C ambient). That continuous torque figure — not the 22 N.m maximum — is the design-in number for a servo axis that runs cycles all shift; exceed it and the 30,000-hour service life at rated speed starts to compress. Straight-tooth planetary gearing gives this box a 94 % efficiency rating — typical for this class — and a 24 arc.min maximum torsional backlash. That backlash figure is the key constraint for positioning: if the load reverses direction within a cycle, the lost motion at the output eats into the positioning budget. For a pick-and-place axis that indexes in one direction, 24 arc.min is acceptable; for a bi-directional table, you'd look at a lower-backlash variant. The shaft output carries an IP54 ingress rating — sealed against dust and splashing water at the output seal, but the motor interface side is not rated. In a washdown environment, the gearbox needs to be mounted with the motor above the gearbox so water doesn't track down the motor shaft into the pinion seal.
Obsolete — sourcing through independent channels only
Schneider Electric has marked the GBX0400050701F as obsolete. We source it per RFQ — quantities are lot-specific, and availability is confirmed at quote time. No pin-compatible drop-in replacement exists from Schneider; a functional replacement would require re-evaluating the motor interface diameter, the input shaft keyway, and the mounting flange pattern.
Mechanical limits — axial and radial load capacity at the output
The output shaft is rated for 200 N axial force (Fa) and 200 N radial force (Fr) at 100 rpm, with the radial load applied at mid-distance from the output shaft — both figures for a 10,000-hour service life at 30 °C. For the full 30,000-hour rated life, those limits drop to 160 N each. If the driven load applies a belt tension or an overhung gear that exceeds 160 N radial, the bearing life shortens proportionally.
Lubricated for life — no maintenance access
The gearbox is lubricated for life — there is no fill plug, drain, or grease fitting. In a cold storage or freezer application, the grease thickens and the breakaway torque rises; the gearbox should be sized with a 1.5× service factor if the ambient stays below 0 °C for extended periods. Noise level is rated at 55 dB at 1 m, no-load — roughly the sound of a quiet office. Under load, expect a 3–5 dB increase from gear mesh harmonics. For a noise-sensitive environment (cleanroom, laboratory), the straight-tooth profile is inherently louder than a helical planetary; if the 55 dB no-load figure is borderline, a helical box would be quieter at the same torque.
