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 65 158 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 1,070 Nm
Limit for Average Torque 1,570 Nm
Limit for Repeated Peak Torque 1,970 Nm
Limit for Momentary Peak Torque 3,450 Nm
Backdriving Torque Nm
Ave. Input Speed 1,400 rpm
Gear Backlash < 1.5 arc min
Mass 12 kg
Torsional Stiffness
T1 78 Nm
K1 26 10^4 Nm / rad
T2 549 Nm
K2 64 10^4 Nm / rad
K3 84 10^4 Nm / rad

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