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 Option
CSF 25 50 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 39 Nm
Limit for Average Torque 55 Nm
Limit for Repeated Peak Torque 98 Nm
Limit for Momentary Peak Torque 186 Nm
Starting Torque 15 Ncm
Backdriving Torque 9 Nm
Ave. Input Speed 3,500 rpm
Standard Accuracy 1 arc min
Mass 1.1 kg
Torsional Stiffness
T1 14 Nm
K1 2.5 10^4 Nm / rad
T2 48 Nm
K2 3.4 10^4 Nm / rad
K3 4.4 10^4 Nm / rad
Output Bearing
Pitch Circle Diameter (dp) 0.06 m
Offset (R) 0.01 m
Basic Dynamic Rated Load (C) 96 10^2 N
Basic Static Rated Load (Co) 151 10^2 N
Allowable Moment Load (Mc) 128 Nm
Moment Stiffness (Km) 19.8 10^4 Nm / rad


Contact Us

Submit a Question


Call: 978-532-1800

Hours 8:00am - 5:00pm EST
Monday through Friday