The Advantage of Strain Wave Gear

Why strain wave gear?

• Since power is transmitted through multiple tooth engagement, strain wave gear (harmonic reducer) offers high output torque capacity.

• Strain wave gears (harmonic reducer) are backlash-free. Positioning accuracy can be within one arc-min. Repeatability accuracy can be within 5 arc-sec.

• Strain wave gear (harmonic reducer) units are reversible and can be used for speed increase as well as speed reduction.

• With only three elements high single stage reduction ratios ranging from 50:1 to 320:1 can be achieved. 

• Strain wave gears (harmonic reducer) exhibit very high torsional stiffness over the whole torque range, as well as almost linear hysteresis behaviour.

• Strain wave gearing the teeth come in contact with an almost pure-radial motion, and have essentially zero sliding velocity, even at high input speeds. This results in minimal wear and long operating life.

• High efficiency be available up to 85 %.

• The strain wave gears (harmonic reducer) can provide the option of a central hollow shaft which can be used to pass cables, shafts through the centre of the gear.