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 50 242 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 559 Nm
Limit for Average Torque 843 Nm
Limit for Repeated Peak Torque 1,176 Nm
Limit for Momentary Peak Torque 1,411 Nm
Backdriving Torque Nm
Ave. Input Speed 1,700 rpm
Gear Backlash < 1.5 arc min
Mass 6 kg
Torsional Stiffness
T1 34 Nm
K1 12 10^4 Nm / rad
T2 294 Nm
K2 34 10^4 Nm / rad
K3 48 10^4 Nm / rad


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Call: 978-532-1800

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