Planetary gearbox for precision motion — 60 mm frame, 4:1 reduction
The Schneider Electric GBX0600040703F is a 60 mm-diameter planetary gearbox with a 4:1 reduction ratio, designed for servo and stepper motor applications where compact axial length and low backlash matter. Rated continuous output torque is 38 N.m at 100 rpm and 30 °C, with a maximum intermittent torque of 61 N.m under the same conditions — enough for indexing tables, pick-and-place axes, and light conveyor drives. The 16 arcmin maximum torsional backlash is typical for a commercial-grade planetary stage; if your application demands sub-arcmin positioning, this gearbox will need a preloaded or dual-drive arrangement.
Torque, life, and the numbers that govern the fit
Continuous torque of 38 N.m is the figure to size against your duty cycle — the 61 N.m peak is for acceleration only, not sustained load. Service life is rated 30,000 hours at 100 rpm and 30 °C, which drops with higher speed or temperature. Maximum radial force on the output shaft is 340 N at mid-shaft for the 30,000-hour life target, or 500 N if you accept a 10,000-hour service interval. Axial force limits are 450 N and 600 N respectively under the same duty split. Torsional rigidity of 2.3 N.m/arcmin tells you how much windup the gear train has under load — at 38 N.m continuous, expect about 16.5 arcmin of elastic deflection on top of the backlash. The moment of inertia reflected to the input is 0.093 g.cm², negligible for most servo tuning. Efficiency is 96 %, meaning 4 % of the input power is lost as heat in the gear mesh — this is typical for a single-stage planetary with straight teeth and grease lubrication. Noise level is 58 dB at 1 m, no-load, which is quiet enough for lab or assembly environments.
Mounting, sealing, and environmental limits
The housing is black anodized aluminium, 60 mm diameter, and the output shaft is C45 steel. Mounting position is unrestricted — any orientation works. The shaft output seal is rated IP54, so the gearbox is splash-resistant but not washdown-rated; keep it out of direct spray. The gearbox is lubricated for life — no maintenance refill needed. Straight-cut teeth are noisier than helical but have zero axial thrust, simplifying bearing selection on the motor side.
Obsolete — sourcing through independent channels
Schneider Electric has marked the GBX0600040703F as obsolete. No official successor part number is listed in the lifecycle record. This gearbox is available through independent surplus and broker channels. No pin-compatible direct replacement from Schneider is documented, so a substitution may require re-evaluating the motor interface and mounting pattern.