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GS42

Spur gearhead platform. 10 published ratios, 0 published configurations.

Diameter
42mm
Ratio range
11.73 to 270:1
Stages
3 to 5
Rated output torque
294 to 981 mN·m
Length
31.5 mm
Revision
A, reviewed 2026-08-18

Envelope

31.5 mm overall ⌀ 42.0 mm
Side elevation of the GS42 gearhead at its shortest published ratio, 11.73:1 over 3 stages, drawn to scale from ⌀42.0 mm by 31.5 mm. Length grows with stage count; every ratio's own length is in the table below.

Every published ratio

Length, rated output torque and typical efficiency change with the stage count. The bore, the mounting face and the diameter do not.

GS42 ratios
SKU Ratio :1 Stages Length mm Rated output torque mN·m Typical efficiency % Output rotation
MM-GS42-00117 11.73331.529473Reversed
MM-GS42-00300 30431.549066Same as motor
MM-GS42-00332 33.16431.549066Same as motor
MM-GS42-00500 50431.588366Same as motor
MM-GS42-00623 62.31431.598166Same as motor
MM-GS42-00900 90431.598166Same as motor
MM-GS42-00995 99.47531.598159Reversed
MM-GS42-01500 150531.598159Reversed
MM-GS42-01869 186.92531.598159Reversed
MM-GS42-02700 270531.598159Reversed

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What this gearhead fits.