Harmonic Drive LLC | 42 Dunham Ridge, Beverly, MA 01915 | 800-921-3332
Harmonic Drive and Harmonic Planetary are registered trademarks of Harmonic Drive.


Series Size Ratio Type
SHG 25 100 2SO
Gear Model Number
Gear Dimensions (see drawing)
Flange Dim A - Motor Adapter Flange Bore Dia. {{foundMotor.flangeDimA}} mm
Flange Dim B - Motor Adapter Flange Bore Depth {{foundMotor.flangeDimB}} mm
Motor Dim C - Motor Bolt Circle Dia. {{foundMotor.dimC}} mm
Flange Dim D - Bolt Size {{foundMotor.flangeDimD}}
Coupling Dim F - Motor Coupling Bore Dia. {{foundMotor.couplingDimF}} mm
Mass kg
Gear Performance Data
Rated Torque L10 87 Nm
Limit for Average Torque 140 Nm
Limit for Repeated Peak Torque 204 Nm
Limit for Momentary Peak Torque 369 Nm
Backdriving Torque Nm
Ave. Input Speed 3,500 rpm
Standard Accuracy 1 arc min
Mass 1.31 kg
Torsional Stiffness
T1 14 Nm
K1 3.1 10^4 Nm / rad
T2 48 Nm
K2 5 10^4 Nm / rad
K3 5.7 10^4 Nm / rad
Output Bearing
Pitch Circle Diameter (dp) 0.08 m
Offset (R) 0.02 m
Basic Dynamic Rated Load (C) 218 10^2 N
Basic Static Rated Load (Co) 358 10^2 N
Allowable Moment Load (Mc) 258 Nm
Moment Stiffness (Km) 39.2 10^4 Nm / rad

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