Company Profile

Harmonic Drive LLC

Harmonic Drive LLC is the world's largest manufacturer of precision strain wave gearing and motion control products. Product categories incude: actuators, servo drives, gearheads, and component sets. Application engineers are available for technical consultation and customer service. Fully equipped facilities provide integration of components as well as prototype assembly.

For: Harmonic Drive Llc

Company Info

P: 978-532-1800
P: 800-921-3332
F: 978-532-9406

Harmonic Drive LLC Entries

  • ►  Motors • Servo Motors 

    For: Entry

    Classified as a small, brushless motor, servo motors feature a built-in speed control device.

    Harmonic Drive manufactures the KDU Series of direct drive servo motors that feature resolution of 8.38 million divisions/revolution, and high precision 10 arcs/sec absolute position accuracy (repeatability of ± 0.5 arc/sec). Other features include stopping stability in servo lock model less than ± 2 pulses (±0.31 arcs/sec.), high torque (7 Nm or 15 Nm, depending on model), a motor OD of 130 mm, a hollow opening diameter of 50mm, and mechanical accuracy run out on output side of 2µm. These direct drive servo motors are used for semiconductor manufacturing systems, FPD manufacturing equipment, optical machines, and measurement, analytical and test systems.

  • ►  Power Transmission • Gearheads & Gearboxes 

    For: Entry

    Use a rotating power source to another device using gear rations. When transmission have multiple gear rations, the gearbox switches the gears.

    Gearheads from HarmonicDrive are available in a variety of models that provide no backlash with gear ratios from 30:1 to 160:1 including precision planetary gearing products and gearheads for OEM servo motors. Models include quick connect gearheads, compact close couple style gearheads, gearheads with input shafts, phase adjust gearheads and ultra flat gearheads.

  • ►  Motion Control • Feedback Devices • Encoders 

    For: Entry


    Harmonic Drive offers their micro encoder series which are ultra miniature three channel incremental encoders with high resolution. Their measurement is as small as 7.5 mm in diameter, and they provide 360 pulses per revolution (1440 with quadrature) and also provides an index pulse. Single shaft and hollow shaft options are available.

  • ►  Motion Control • Actuators 

    For: Entry

    Mechanical devices that introduce motion. Types include pneumatic actuators, hydraulic actuators, linear actuators and piezoelectric actuators.

    Harmonic Drive offers a full line of actuators, including AC servo, DC servo, linear, direct drive motor, laser scanning, sensor systems, and custom designs.

  • ►  Factory Automation • Instrumentation • Encoders 

    For: Entry


    Harmonic Drive makes micro encoder sensor systems with dimentions of 7.5 by 10.5mm with incremental encoder line count of 360, square wave open collector output, single or hollow shaft, and more for applications such as small robots, small servo motors, and miniaturization.

  • ►  Motion Control • Actuators • Linear Actuators 

    For: Entry

    Linear Actuators

    Harmonic Drive LLC manufactures four series of linear actuators that feature maximum thrust force of 49N, 3000N, and 12000N. The company's LA series of linear actuators feature 0.0174 micrometers of resolution, and are used for image instrumentation, high precision assembling, wafer position alignment, focus alignment, and driving of high precision stages.

  • ►  Motion Control • Actuators • Rotary Actuators 

    For: Entry

    Harmonic Drive LLC manufactures a series of rotary actuators used for semiconductor manufacturing systems, FPD manufacturing systems, electronic component insertion machines, and measurement analytical and test systems. The compact actuators feature rated output of 111-310W, rated torque of 19-98 Nm, and rated rotational speed of 30 or 60 r/min.

  • ►  Power Transmission • Gears • Planetary Gears 

    For: Entry

    Harmonic Drive has a full line of planetary gears including ultra flat CSD/CSD-2UH/CSD-2UF in sizes 14-50; CSF-GH with zero backlash in sizes 14-65; HDI shaft mounted gear reducers in sizes 10-50; and SHG/SHF gearheads for high torque operations in sizes 14-65.

  • ►  Motion Control • Feedback Devices • Encoders • Incremental Encoders 

    For: Entry

    Harmonic Drive has a 7.5mm incremental micro encoder in single- and hollow-shaft, and has a square wave open collector output. Harmonic Drive's micro encoders are designed for small robots, small servo motors and miniaturized industrial systems.

  • ►  Power Transmission • Speed Reducers • Planetary Speed Reducers 

    For: Entry

    Harmonic Drive offers their HPG Series of harmonic planetary speed reducers in a quick connect configuration. Features include <1 arc-min backlash, 90% efficiency, >20 arc-sec. repeatability, and reduction ratios of 3:1 to 45:1.