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    90 mm Strain Wave Harmonic Drive Gearbox, Ratio 50~100

    Get the best 90mm strain wave gear from a reliable harmonic drive company. It is a high torque harmonic gearing with a 50 or 100 gear ratio. The harmonic drive gearbox provides high transmission accuracy and supports a single-stage high reduction ratio with low inertia, used for industrial robots, CNC equipment, medical instruments, and the military industry.
    SKU: ATO-HD-90
    Free Shipping Worldwide
    Delivery date: 6-12 days

    Low price 90mm harmonic drive is the simplest solution for your high-precision motion control applications. It is a strain wave gear that provides harmonic gear reduction and increases rotation speed. Buy a harmonic gearing with a 50 or 100 gear ratio for robotics and aerospace.


    • The lightweight strain wave harmonic drive gearbox has an ultra-thin hollow, compact and simple structure.
    • Excellent positioning accuracy and rotation accuracy.
    • Harmonic gearing with a high torque capacity and a high gear ratio is available.


    Model: ATO-SHD-20
    Diameter: 90 mm
    Thickness: 19 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
    Number of stages: Single-stage
    Gear ratio: 50, 100, other gear ratios please contact us.


    Gear ratio 50 100
    Rated torque when input 2000r/min (N.m) 17.00 28.00
    Allowable peak torque at start and stop (N.m) 39.00 57.00
    Maximum allowable average load torque (N.m) 24.00 34.00
    Momentary allowable maximum torque (N.m) 69.00 95.00
    Allowable maximum input speed (r/min) 6000
    Allowable average input speed (r/min) 3500
    Arc seconds ≤20 ≤10
    Design life (hour) 10000

    90mm strain wave harmonic drive gearbox dimensions (unit: mm)

    90 mm strain wave harmonic drive gearbox dimensions

     Strain wave harmonic drive gearbox applications

    Harmonic drive applications

    Tips: What is a strain wave harmonic drive gearbox?

    ATO strain wave harmonic drive gearbox is a kind of speed reduction device, which is composed of three basic components: fixed internal gears, flexible wheels and wave generators that cause radial deformation of the flexible wheels. Harmonic gearing is a new type of transmission structure. The harmonic drive uses the flexible gear to generate a controlled elastic deformation wave, causing the relative misalignment between the teeth of the rigid wheel and the flexible wheel to transmit power and motion. The harmonic drive has the advantages of high precision and high load capacity, and its volume and weight are reduced by at least 1/3 compared with an ordinary gear reducer because the material used is 50% less.

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