What this gearbox delivers — and where it fits
The GBX0400200702F is a 40 mm-diameter planetary gearbox with a 20:1 reduction ratio. It delivers 20 N.m continuous output torque at 100 rpm and 30 °C ambient — that's the working limit for sizing into a conveyor or indexing drive, not the peak number. Efficiency sits at 94 % under load, so heat rejection is low enough that the black anodized aluminium housing sheds it without a fan in most panel-mount builds. Noise measures 55 dB at 1 m, no-load — quiet enough for a packaging line or lab-stage automation where operator exposure matters. The shaft output carries an IP54 rating, meaning it handles dust and splash from washdown nearby but isn't rated for direct spray. Lubricated for life — no oil-change interval to track in the PM schedule.
Service life and load limits — the real numbers
Rated service life is 30,000 hours at 100 rpm and 30 °C ambient. That's about 3.4 years of continuous 24/7 running — plan the replacement cycle around that, not the peak torque figure. Maximum axial force on the output shaft is 200 N for a 10,000-hour life, dropping to 160 N if you want the full 30,000 hours. Same derating applies to radial force — 200 N at mid-shaft for 10,000 hours, 160 N for 30,000 hours. Overhang a pulley or sprocket past mid-shaft and those numbers shrink. Torsional backlash is 28 arc.min maximum — typical for a straight-tooth planetary at this price tier. If your application needs tighter positioning (indexing a rotary table under 0.5°), you'd spec a helical or low-backlash series instead.
Obsolete — how to source it now
Schneider Electric lists the GBX0400200702F as obsolete. We source this gearbox through independent distribution channels — new-old-stock or surplus lots. No stock-holding claim here; it's quoted per request. If you're designing a new line, look at current planetary gearboxes in the same 40 mm frame size and 20:1 ratio from Schneider's active catalog — the mounting flange and shaft dimensions are the key fit check.