Harmonic Drive LLC | 42 Dunham Ridge, Beverly, MA 01915 | 800-921-3332
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SHF-20-30-2UJ
Series Size Ratio Type
SHF 20 30 2UJ
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 15 Nm
Limit for Average Torque 20 Nm
Limit for Repeated Peak Torque 27 Nm
Limit for Momentary Peak Torque 50 Nm
Starting Torque 19 Ncm
Backdriving Torque 10 Nm
Ave. Input Speed 3,500 rpm
Standard Accuracy 1.5 arc min
Mass 1.38 kg
Torsional Stiffness
T1 7 Nm
K1 0.57 10^4 Nm / rad
T2 25 Nm
K2 0.71 10^4 Nm / rad
K3 1.1 10^4 Nm / rad
Output Bearing
Pitch Circle Diameter (dp) 0.07 m
Offset (R) 0.02 m
Basic Dynamic Rated Load (C) 145 10^2 N
Basic Static Rated Load (Co) 220 10^2 N
Allowable Moment Load (Mc) 187 Nm
Moment Stiffness (Km) 25.2 10^4 Nm / rad

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