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
SHD 40 50 2SH
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 96 Nm
Limit for Average Torque 137 Nm
Limit for Repeated Peak Torque 281 Nm
Limit for Momentary Peak Torque 480 Nm
Starting Torque 95 Ncm
Backdriving Torque 57 Nm
Ave. Input Speed 3,000 rpm
Standard Accuracy 1 arc min
Mass 3.09 kg
Torsional Stiffness
T1 54 Nm
K1 8.8 10^4 Nm / rad
T2 196 Nm
K2 11 10^4 Nm / rad
K3 15 10^4 Nm / rad
Output Bearing
Pitch Circle Diameter (dp) 0.13 m
Offset (R) 0.01 m
Basic Dynamic Rated Load (C) 216 10^2 N
Basic Static Rated Load (Co) 408 10^2 N
Allowable Moment Load (Mc) 424 Nm
Moment Stiffness (Km) 145 10^4 Nm / rad


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