Harmonic Gearbox

Zhejiang Laifual Drive Co., Ltd. is one of professional laifual drive companies
. We provide LSD Shorten Thin Harmonic Gearbox, LFS Ultra Flat Harmonic
Gearbox, planetary speed reducer and so on. Want to know more? Please contact
us.

Laifual adopts our newest developed "LS" tooth profile, which improves harmonic
reducer's comprehensive performance a lot. Compared to the original "δ" tooth
profile, the load capacity of our harmonic drive reducer increases 15%;
temperature rise decreases 8-10 ℃; gear's fatigue pitting contact area
decreases more than 30%; a lifetime is more than 15000 hours.

Types of Harmonic harmonic drive gearbox

LSS/LSG/LSN Standard Type/High Torque/Light Weight Harmonic Gearbox
LSD Shorten Thin Harmonic Gearbox
LFS Ultra Flat Harmonic Gearbox
LHT/LHN/LHG Large Diameter Hollow Hole, Flat Shape Harmonic Gearbox
LHD Shorten Thin Harmonic Gearbox

Composition of harmonic speed reducer
Harmonic gear reducer has three basic components：a wave generator,a flexspline
and a circular spline.

Wave Generator

Harmonic Gear Reducer is made up of a ball bearing and an elliptical cam. The
wave generator is usually attached to the input end, the inner ring of the
bearing is fixed around the cam causing the outer ring of the bearing deforms
to an elliptical shape.

Flex Spline

It is an elastic thin-walled component with gear teeth on the outer surface.
Harmonic Gear Reducer is usually fitted to the output end.

Circular Spline

It is a rigid steel ring with internal teeth. Harmonic Gear Reducer usually has
two more teeth than the flex spline, and generally mounted onto a housing.

Harmonic drive working principle
As a reducer, the harmonic gear reducer is often in status as the wave
generator drives, the circular spline is fixed, and the flex spline is output
end.

When the wave generator is put inside of the flex spline, the flex spline is
forced into an elliptical shape causing the flex spline teeth to engage with
the tooth profile of the circular spline along the major axis of the ellipse,
with the teeth completely disengaged across the minor axis of the ellipse.

The rotation of the wave generator makes the flex spline deform continuously,
the teeth change operating state in the process of engagement and
disengagement, thus the motion transmission between wave generator and flex
spline is realized.

Characteristics of Harmonic Gear Reducer

High accuracy
A good percentage of harmonic gear reducer's teeth are meshed at all times and
are engaged at two zones 180 degrees apart. This means influences of tooth
pitch errors and accumulated pitch errors on rotational accuracy are
neutralized, which assures high positional and rotational accuracy.

High speed reduction ratio
A harmonic gear reducer has high single-stage reduction ratios of 1/30-1/500.
Three basic components along same axle without complex structures can provide
high reduction ratios.

High torque capacity
Each tooth subjected to a negligible amount of force yet provides a high torque
capacity because of the way the teeth come into contact with each other and
because a good percentage of the teeth in the flex spline is engaged at all
times.

Small-sized and light weight
While being less the size of conventional gearing mechanisms and less the
weight, the harmonic gear reducer provides the same levels of torque and speed
reduction ratios as its conventional counterparts enabling machinery and
equipment to be made smaller and lighter.

Superior efficiency and long life time
As a professional harmonic drive company in China, Laifual produces harmonic
drive reducers with superior efficiency and long service time.

Quiet and minimal vibration operation
Laifual's harmonic drive reducers also operate with quiet and minimal
vibration.

Minimum Order: 1 sets

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