The GBX0400080703F is a straight-tooth planetary gearbox with a 40 mm outer diameter and an 8:1 reduction ratio. Rated service life is 30,000 hours at 100 rpm and 30 °C, with the gearbox lubricated for life — no maintenance schedule for oil changes. The axial and radial load limits are 200 N and 200 N respectively at 100 rpm for a 10,000-hour life, dropping to 160 N axial for the full 30,000-hour window. Backlash is 30 arcmin maximum — this is a commercial-grade positioning gearbox, not a zero-backlash precision unit. If the application indexes or reverses direction under load, that 30 arcmin of lost motion must be absorbed by the downstream mechanism or encoder.
Sourcing reality — obsolete, but we hold stock
Schneider Electric lists the GBX0400080703F as obsolete. We carry these as last-time-buy inventory — held specifically for lines that cannot redesign around a different frame size or ratio. The 94 % efficiency and 55 dB noise level at 1 m no-load are the original factory ratings — no degradation from storage, as the gearbox is lubricated for life and sealed to IP54 at the shaft output.
Integration notes — shaft loads and environment
The output shaft is C45 steel; the housing is black anodised aluminium. Ambient operating range is -25 to 90 °C, which covers most indoor industrial enclosures but not washdown or outdoor direct-sun exposure. The IP54 rating applies only at the shaft output seal — the gearbox body itself is not sealed against hose-directed water. Mount it where drips and dust are the exposure, not pressure spray. Torsional rigidity is 1 N.m/arcmin — this is a stiffness figure for the gear train, not the housing. For applications requiring positioning repeatability, factor the 30 arcmin backlash plus the windup under load into the total compliance budget.