The GBX0600050574G is a 60 mm-diameter planetary gearbox with straight-cut teeth and a 5:1 reduction ratio — sized for servo or stepper motor output stages where compact inline torque multiplication is needed. Continuous output torque is 40 N.m at 100 rpm at 30 °C, with a maximum intermittent rating of 64 N.m at the same speed and temperature — the gap between continuous and peak covers acceleration and short overloads without oversizing the gearbox. Efficiency sits at 96 %, which means about 4 % of input power is lost as heat through the gear mesh and bearings — for a motor delivering 400 W at the input, roughly 384 W reaches the load shaft. Noise level is 58 dB at 1 m under no-load — quiet enough for lab or light assembly environments where operator exposure limits are a concern, but expect a few dB more under full torque.
Sourcing reality — obsolete, quoted to order
Available through independent surplus and broker channels; quantities are lot-specific and confirmed at RFQ. No factory lead time applies — each lot is sourced as found. The service life is rated 30,000 hours at 100 rpm at 30 °C under continuous torque — if the replacement gearbox is going into a machine with remaining life past that window, budget for a second unit or a redesign to a current-series planetary.
Mounting and integration — any position, IP54 shaft output
Mounts in any position — no oil fill orientation restrictions since it's lubricated for life with a sealed grease charge. Shaft output seal is rated IP54 — splash-resistant but not submersible; keep the output shaft out of direct washdown or coolant spray. Ambient operating range is -25 to 90 °C — suitable for unheated plant floors or near-oven conveyor drives, but the 30 °C torque ratings derate above that ambient; no formal derating curve is published, so plan a margin if running above 40 °C. Torsional rigidity is 2.3 N.m/arcmin — a stiffness figure that tells you how many arc-minutes of windup you get per N.m of load; for a 5:1 ratio with 40 N.m continuous, expect about 17 arcmin of elastic twist at the output under full load.
Backlash and load limits — what fits a precision axis
Maximum torsional backlash is 16 arcmin — this is a standard-precision planetary, not a zero-backlash unit; suitable for positioning where the load holds position against friction, but not for bidirectional reversing with tight positional repeatability. Maximum axial force (Fa) on the output shaft is 450 N at 100 rpm for the full 30,000-hour life, or 600 N if you accept a shorter 10,000-hour life — the bearing life is the constraint, not the shaft strength. Maximum radial force (Fr) applied at mid-shaft is 340 N for 30,000 hours or 500 N for 10,000 hours — belt-drive loads or overhung pulleys must stay within these limits or the output bearing wears prematurely.