20:1 reduction, 260 N.m continuous — what the ratings mean on the line
The GBX1200201401F is a straight-tooth planetary gearbox with a 20:1 reduction ratio and 260 N.m continuous output torque at 100 rpm, 30 °C. That continuous figure is your duty-cycle anchor — the motor side sees about 13 N.m reflected back, so the servo or stepper sizing starts there. Maximum output torque hits 416 N.m at the same speed and temperature — short-duration peak loads during acceleration or reversing won't overshoot the gear train if they stay under that ceiling.
Obsolete — sourcing reality for this GBX gearbox
Schneider Electric lists the GBX1200201401F as obsolete. No direct successor order code is recorded — the GBX series has been phased out, so replacement means either a surplus-channel buy or a parametric cross to a current planetary gearbox family. Sourced through independent distribution against an RFQ.
Efficiency, noise, and mechanical limits
Rated 94 % efficiency means about 6 % of the input power turns into heat inside the housing. For a 1 kW input that's 60 W of thermal load — the black anodised aluminium body (120 mm diameter) sheds it in still air, but in a sealed enclosure the duty cycle may need de-rating. Noise floor is 65 dB at 1 m, no-load — that's conversational level. Straight-cut teeth are inherently noisier than helical, so if the application is in a quiet lab or near operator stations, expect a whine under load. Service life is 30,000 hours at 100 rpm and 30 °C — about 3.4 years continuous running. The gearbox ships lubricated for life, so no oil-change interval to schedule. Maximum axial force on the output shaft is 2100 N for the full 30,000-hour life, or 2800 N if you accept a 10,000-hour service life. Radial force at mid-span is 1500 N for 30,000 hours, 2000 N for 10,000 hours. These are the limits that govern overhung load sizing — belt drives or pinions that exceed these will shorten bearing life. Shaft output IP54 means the output seal resists dust and splashing water, but the input side and motor adapter are not sealed — the gearbox is for dry indoor locations, not washdown.