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    142 mm Strain Wave Harmonic Drive Gearbox, Ratio 50~120

    142 mm harmonic drive gearbox for sale online. Low price harmonic reducer with 50, 80, 100 and 120 gear ratios for selection. Strain wave gearbox is the best solution for industrial robots, CNC equipment, medical instruments, military industry and other fields.
    SKU: ATO-HD-142
    30-day Returns
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    Delivery date: 6-12 days

    Get a harmonic drive gearbox at low cost. It is available with 50, 80, 100 and 120 gear ratios. 142 mm harmonic reducer provides high transmission accuracy and supports a high reduction ratio with low inertia, which is the best solution for industrial robots.


    • It is a strain wave harmonic drive gearbox that can automatically adjust the center of the wave generator, which is convenient to use.
    • Compact harmonic reducer is available with a high torque capacity and 50~120 high gear ratio.
    • 142 mm strain wave gearbox is designed for robots.


    • Model: ATO-SHF-32-I
    • Type: Self-aligning
    • Diameter: 142 mm
    • Thickness: 44 mm
    • Gear type: Cylindrical gear reducer
    • Installation form: Horizontal
    • Input speed: 3500 rpm
    • Rated power: 0.1 kW
    • Output speed: 0~500 rpm
    • Available torque: 1~100 N.m
    • Gear ratio: 50, 80, 100, 120, other gear ratios please contact us.


    Gear ratio 50 80 100 120
    Rated torque when input 2000r/min (N.m) 72 112 130 130
    Allowable peak torque at start and stop (N.m) 205 289 325 335
    Maximum allowable average load torque (N.m) 103 159 208 208
    Momentary allowable maximum torque (N.m) 363 540 635 652
    Allowable maximum input speed (r/min) 5500
    Allowable average input speed (r/min) 3500
    Arc seconds ≤20 ≤10 ≤10 ≤10

    Dimensions (unit: mm)

    142mm harmonic drive dimensions

    Harmonic Drive Gearbox Applications

    ATO harmonic drive gearboxes can be used to optimize the shape of robots, increase precision, increase strength, improve flexibility, etc., and are widely used in industrial robots, numerical control equipment, medical instruments, military and other fields.

    Harmonic drive applications

    Tips: Harmonic Reducer vs. RV Reducer

    The harmonic reducer is used for industrial robots with small loads or the last few axes of large robots. Harmonic reducer is a kind of harmonic transmission device, which includes a harmonic accelerator and harmonic reducer. Harmonic reducers mainly include rigid wheels, flexible wheels, bearings and wave generators. Among them, the number of teeth of the rigid spline is slightly larger than that of the flexible spline. The harmonic reducer is used in small robots because of its small size, lightweight, large carrying capacity, high motion accuracy, and large single-stage transmission ratio.

    The RV reducer is used for the three joints of the leg, waist and elbow of the robot with a large torque, and the three axes of the industrial robot with a large load use RV. Compared with the harmonic reducer, the key of the RV reducer lies in the processing technology and assembly process. RV reducer has higher fatigue strength, rigidity and life.

    Installation Manual

    PDFATO Harmonic Drive Gearbox Installation Manual

    Precautions for installation

    1. When the harmonic drive gearbox is in use, if the output end is horizontally downward, the lubricating grease injected into the inner wall space of the flexspline must exceed the meshing tooth surface.
    2. The installation plane of the rigid wheel and the rigid wheel connection and the installation plane of the flexible wheel and the flexible wheel need to be statically sealed to ensure that the grease will not leak during the use of the harmonic drive gearbox and avoid the reducer from working with little or no oil Time damage.
    3. During the installation process, please do not knock the parts of the harmonic drive gearbox with hard objects, or apply strong pressure to avoid damage to the parts.
    4. If you have any questions during the inspection, please contact ATO.

    Tips for using a harmonic drive gearbox

    • Please use it in the specified environment.
      Observe the following conditions when using a harmonic drive gearbox:
      Ambient temperature: 0-40 degrees Celsius, no splashes of water, oil, etc.; no corrosive, explosive gas; no dust such as metal powder,
    • Please use the prescribed method for installation.
      Please implement the installation method correctly according to the harmonic drive gearbox manual. If it is not installed correctly, it may cause vibration, loss of accuracy, shortened service life, damage and other failures.
    • Please use the specified lubricant.
      Failure to use the specified lubricant may result in reduced harmonic drive gearbox life.
      Please do not disassemble or reassemble the product, otherwise, it will not be able to restore its original performance.
      Do not exceed the allowable torque during use, otherwise, it may cause harmonic drive gearbox failure.
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