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    55 mm Strain Wave Harmonic Drive Gearbox, Ratio 30~100

    Cheap harmonic drive gearbox for sale online. 55 mm strain wave gearbox with 30/50/80/100 gear ratios for selection. High precision strain wave harmonic drive gearbox is widely used for industrial robots, CNC equipment, medical instruments, military industry and other fields.
    SKU: ATO-HD-55
    30-day Returns
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    Delivery date: 6-12 days

    55 mm harmonic drive gearbox is available with 30/50/80/100 gear ratios, provides high transmission accuracy and supports a high reduction ratio with low inertia. Factory price strain wave gear is the best solution for industrial robots.


    • It is a strain wave harmonic drive gearbox with a hollow structure.
    • Compact harmonic drive gearbox with a high static Increased load capacity of simple structure.
    • The load capacity of the shaft on the output side of the strain wave gearbox is increased.
    • Harmonic gearing with a 30~100 high gear ratio is available.
    • 55 mm strain wave gearbox is designed for robots.


    • Model: ATO-CSD-14
    • Diameter: 55 mm
    • Thickness: 25 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: 30, 50, 80, 100, other gear ratios please contact us.


    Gear ratio 30 50 80 100
    Rated torque when input 2000r/min (N.m) 2.22 3.7 4.35 5.4
    Allowable peak torque at start and stop (N.m) 11.4 19 15.2 19
    Maximum allowable average load torque (N.m) 2.88 4.8 6.16 7.7
    Momentary allowable maximum torque (N.m) 14.4 24 28 35
    Allowable maximum input speed (r/min) 8000
    Allowable average input speed (r/min) 3500
    Arc seconds ≤20 ≤20 ≤10 ≤10

    Dimensions (unit: mm)

    56 mm 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: Principle of Harmonic Transmission

    Harmonic gear transmission, invented by American inventor CWMusser in 1955, is a new type of transmission that uses the elastic deformation of flexible working members to move or transmit power. It breaks through the use of rigid components in mechanical transmission. The mechanism method uses flexible components to achieve mechanical transmission, so as to obtain a series of special functions that are difficult to achieve with other transmissions. It is named because the deformation process of the middle flexible member is basically symmetrical harmonic. In addition to the former Soviet Union called this transmission or soft wheel transmission, the United States, Britain, Germany, Japan and other countries called "harmonic transmission". ATO harmonic drive gearbox is the use of this principle.

    Precautions for installing a harmonic drive gearbox

    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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    SKU: ATO-HD-90
    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.