Planetary gearbox, 40 mm frame, 3:1 ratio
The GBX0400030701F is a straight-tooth planetary gearbox with a 40 mm external diameter and a 3:1 reduction ratio, delivering 94 % efficiency across the rated load range. Maximum torsional backlash is 24 arcmin, with a torsional rigidity of 1 N.m/arcmin — the stiffness figure governs positioning repeatability under reversing loads; the backlash figure is the unloaded angular play at the output shaft. Rated service life is 30,000 hours at 100 rpm and 86 °F (30 °C), with the gearbox lubricated for life — no maintenance re-greasing interval to schedule.
Load ratings and operating limits
Maximum axial force on the output shaft is 200 N at 100 rpm for a 10,000-hour life, derated to 160 N for the full 30,000-hour rating; the same 200 N / 160 N derating applies to radial force, measured at mid-distance on the shaft. Ambient temperature range for operation is -13 to 194 °F (-25 to 90 °C), covering most indoor industrial environments without active cooling. Housing is black anodized aluminium; shaft material is C 45 carbon steel — a standard combination for corrosion resistance in dry indoor service and adequate shaft hardness for keyed or clamped couplings.
Sourcing an obsolete planetary gearbox
Available through independent distribution channels; quantities are confirmed at RFQ and sourced against the BOM line. No direct pin-compatible alternative from the same manufacturer is documented.