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    30x30 mm Strain Wave Harmonic Drive Gearbox, Ratio 30~100

    The provided 30x30 mm harmonic drive gearbox is the simplest solution for your high-precision motion control applications. It is a strain wave gear that offers harmonic gear reduction and increases rotation speed. Buy a small harmonic gearing with a 30~100 gear ratio for robotics and aerospace.
    SKU: ATO-HD-30
    30-day Returns
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    Delivery date: 6-12 days

    Popular 30x30 mm strain wave gearbox can provide harmonic gear reduction, but can also be used to increase rotation speed. Small strain wave harmonic drive gearbox is the best solution for industrial robots. Harmonic gearing with a high torque capacity and rigidity is available.


    • It is a strain wave harmonic drive gearbox with high rigidity, no gear backlash and coaxial input and output.
    • The gearbox features excellent positioning accuracy and rotation accuracy.
    • Harmonic reducer with a high torque capacity and a high gear ratio is available.
    • 30x30 mm strain wave gearbox is designed for robots.


    • Model: ATO-CSF-08-XX-1U-U
    • Output/Input: Shaft Input, Shaft Output
    • Diameter: 30x30 mm
    • Thickness: 67.5 mm
    • Gear type: Cylindrical gear reducer
    • Tooth Surface Hardness: Hard Tooth Surface
    • Layout Form: Coaxial
    • 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) 0.9 1.8 2.2 2.4
    Allowable peak torque at start and stop (N.m) 1.8 3.3 4.3 4.8
    Maximum allowable average load torque (N.m) 1.4 2.3 2.9 3.3
    Momentary allowable maximum torque (N.m) 3.3 6.6 8 9
    Allowable maximum input speed (r/min) 8500
    Allowable average input speed (r/min) 3500
    Moment of inertia (1/4GD) (kgcm2) 3.2x10-3
    Arc seconds ≤20 ≤10

    30x30 mm strain wave harmonic drive gearbox dimensions (unit: mm)

    30x30mm 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: Advantages of the harmonic drive gearboxes

    • Large transmission speed ratio. The speed ratio of harmonic gear gearbox ranges from 70 to 320 and can reach 1,000 in some devices, and the speed ratio of multi-stage transmission can reach more than 30,000. It can be used not only for deceleration but also for speeding up.
    • High carrying capacity. Because the number of teeth meshing at the same time in the harmonic gear transmission is large, the number of teeth meshing at the same time in the double wave transmission can reach more than 30% of the total number of teeth, and the flexible spline is made of high-strength materials, and the teeth are in surface contact.
    • High transmission precision. The number of teeth meshing at the same time in the harmonic drive gearboxes is large, and the error is averaged. The multi-tooth meshing has a mutual compensation effect on the error, so the transmission precision is high.
    • The harmonic gear reducer has a simple structure, few parts and easy installation.
    • Small size and lightweight. Compared with the general reducer, when the output torque is the same, the volume of the harmonic drive gearbox can be reduced by 2/3, and the weight can be reduced by 1/2.
    •  The harmonic gear reducer can transmit motion to the confined space.

    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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