Harmonic Drive LLC | 247 Lynnfield St. Peabody, MA 01960 | 800-921-3332
Harmonic Drive and Harmonic Planetary are registered trademarks of Harmonic Drive LLC.

Series Size Ratio Type
FR 80 80 2-GR

• Maximum reduction ratio in minimum space
• Low backlash
• Simple installation and maintenance

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 1,320 Nm
Limit for Average Torque 1,640 Nm
Limit for Repeated Peak Torque 1,640 Nm
Limit for Momentary Peak Torque 2,870 Nm
Backdriving Torque Nm
Ave. Input Speed 1,200 rpm
Gear Backlash < 1.5 arc min
Mass 22.3 kg
Torsional Stiffness
T1 147 Nm
K1 51 10^4 Nm / rad
T2 1,078 Nm
K2 130 10^4 Nm / rad
K3 165 10^4 Nm / rad


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Call: 978-532-1800

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