4:1 planetary gearbox, 38 N.m continuous — now obsolete
The GBX0600040551F is a 60 mm-diameter planetary gearbox from Schneider Electric with a 4:1 reduction ratio, delivering 38 N.m (336.3 lbf.in) continuous output torque at 100 rpm and 30 °C. Rated service life is 30,000 hours at that duty point, with the gearbox lubricated for life and sealed to IP54 at the shaft output. Schneider has marked this part as Obsolete — no direct successor is listed, so any replacement will require a new BOM line and possibly a mounting adapter.
Torque, backlash, and load ratings
Maximum output torque reaches 61 N.m (539.9 lbf.in) at 100 rpm, but the continuous rating of 38 N.m is the figure to size against for sustained duty. Maximum torsional backlash is 16 arc.min — acceptable for general positioning but not for high-precision indexing without compensation. Radial force limit is 340 N (mid-shaft, 30,000-hour life) and axial force limit is 450 N under the same conditions; both drop if you push to 10,000-hour life (500 N radial, 600 N axial).
Efficiency and noise in a compact package
Listed efficiency is 94 % — typical for a single-stage planetary with straight teeth; expect some drop under partial load or at elevated temperature. Noise level is 58 dB at 1 m, no-load — quiet enough for most production-floor environments without an enclosure.
Sourcing an obsolete gearbox
No official cross-reference or successor part number exists from Schneider. A functional replacement will need to match the 60 mm diameter, 4:1 ratio, and 38 N.m continuous torque at the same mounting interface.