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

Series Size Ratio Type Option
SHD 25 80 2UH LW
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 44 Nm
Limit for Average Torque 60 Nm
Limit for Repeated Peak Torque 96 Nm
Limit for Momentary Peak Torque 179 Nm
Starting Torque 66 Ncm
Backdriving Torque 60 Nm
Ave. Input Speed 3,500 rpm
Standard Accuracy 1 arc min
Mass 1.4 kg
Torsional Stiffness
T1 14 Nm
K1 2.7 10^4 Nm / rad
T2 48 Nm
K2 3.7 10^4 Nm / rad
K3 4.7 10^4 Nm / rad
Output Bearing
Pitch Circle Diameter (dp) 0.08 m
Offset (R) 0.01 m
Basic Dynamic Rated Load (C) 109 10^2 N
Basic Static Rated Load (Co) 179 10^2 N
Allowable Moment Load (Mc) 129 Nm
Moment Stiffness (Km) 31 10^4 Nm / rad


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