25:1 planetary gearbox — 40 N.m continuous, 94 % efficiency
The GBX0600251002F is a 60 mm-diameter planetary gearbox from Schneider Electric's GBX series, with a 25:1 reduction ratio and straight-tooth gearing. It delivers 40 N.m continuous output torque at 100 rpm and 30 °C, with a maximum of 64 N.m at the same speed. Efficiency is listed at 94 %, meaning 6 % of input power is lost as heat — typical for a single-stage planetary at this ratio. The noise level is 58 dB at 1 m, no-load, which is quiet enough for indoor automation cells without additional acoustic enclosures.
Obsolete — sourced through independent channels
Schneider Electric has marked this gearbox as obsolete. No official successor is listed. The part is available through independent surplus and broker channels; quantities are confirmed at RFQ. For a replacement, the closest functional match would be a current-production planetary gearbox with the same 60 mm frame size, 25:1 ratio, and 40 N.m continuous torque rating — but the mounting interface and shaft dimensions must be verified against the existing BOM.
Duty ratings and mechanical limits
Service life is 30,000 hours at 100 rpm and 30 °C under rated load. The gearbox is lubricated for life, eliminating routine oil changes. Maximum torsional backlash is 20 arcmin — typical for a precision planetary stage. Shaft output is rated IP54, meaning dust-protected and splash-resistant — suitable for dry indoor environments but not washdown. Ambient operating range is -25 to 90 °C. Maximum axial force on the output shaft is 450 N for 30,000-hour life, 600 N for 10,000-hour life; maximum radial force is 340 N and 500 N respectively, measured at mid-shaft. Torsional rigidity is 2.5 N.m/arcmin — the shaft wind-up under load is predictable and low, important for positioning accuracy in indexing or pick-and-place applications.