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
FBS 25 30 2UH
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 24 Nm
Limit for Repeated Peak Torque 25 Nm
Limit for Momentary Peak Torque 50 Nm
Starting Torque 25 Ncm
Backdriving Torque 11 Nm
Ave. Input Speed 2,500 rpm
Standard Accuracy 3 arc min
Mass 1.3 kg
Torsional Stiffness
T1 7.4 Nm
K1 1.3 10^4 Nm / rad
T2 26 Nm
K2 1.3 10^4 Nm / rad
K3 1.6 10^4 Nm / rad
Output Bearing
Pitch Circle Diameter (dp) 0.07 m
Offset (R) 0.01 m
Basic Dynamic Rated Load (C) 73 10^2 N
Basic Static Rated Load (Co) 110 10^2 N
Allowable Moment Load (Mc) 93 Nm
Moment Stiffness (Km) 21 10^4 Nm / rad


Contact Us

Submit a Question


Call: 978-532-1800

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