news

The Basics of Strain Wave Gear

update:2022-12-16
abstract:Using the elastic deformation principle, a strain wave gear can produce a high ratio gearbox that ca...


Using the elastic deformation principle, a strain wave gear can produce a high ratio gearbox that can be used in a variety of applications. It can be compact, and offers reasonable speed-to-torque conversion. It can be integrated into existing applications, and its simplicity allows it to be easily fabricated.

A strain wave gear set has three basic components: the flexspline, the elliptical wave generator, and the outer circular spline. These three parts are used to produce the desired gear ratio.

The formulas that define the characteristics of strain wave gearing were developed by analyzing the motion of teeth and extrapolating from standard engineering practice. However, they can be modified by specific experimental tests. If the results of these tests are unexpected, the formulas may be adjusted accordingly.

The tensile stress in the deflected strain gear is the determining characteristic. This stress is dependent on the number of teeth, the contact pressures, and the material of the gear. The area of contact at any point of time must be multiplied by the surface endurance limit of the gear material. It is also necessary to consider the point-loading effect.

When the radial distances are changed, the strain wave advances a large number of areas of contact. The stress at the base of the wave is slightly more than half as much as the crest. The total strain wave height is the same as the difference in radial distances.

The elliptical wave generator consists of an elliptical disk with an outer ball bearing. The flexspline is made from thin alloy steel. The spline moves slowly while the wave generator rotates.

Recommand Products

HOT SALE Ultra-thin strain wave gear ADF-I for robotics

HOT SALE Ultra-thin strain wave gear ADF-I for robotics

Item No.: ADF-11/14 ultrathin hollow shaft harmonic drive popular used on CNC machine, industry robo...

More
Cheap Ultra-thin harmonic gear ADHD-I for robot arm

Cheap Ultra-thin harmonic gear ADHD-I for robot arm

Selling Units: Single itemSingle package size: 29X21X13 cmPackage Type: One Set of Harmonic Drive in...

More
Ultra-thin and hollow harmonic drive ADHD-III WITH LOW COST

Ultra-thin and hollow harmonic drive ADHD-III WITH LOW COST

Item No.: ADHD-14/17/20-III Brand Name: Arcsec Drive Place of Origin: zhejiang, China ADHD series' f...

More
China high quality harmonic gearbox ADH-I  With Unique Tooth Profile

China high quality harmonic gearbox ADH-I With Unique Tooth Profile

ADH-I:A combination product like hat type, which is easy to operateADHN-I: Light weight products,20%...

More
Low cost harmonic gearbox ADH-III

Low cost harmonic gearbox ADH-III

Item No.: ADH-14/17/20/25/32/40-III hollow shaft harmonic drive popular used on CNC machine, industr...

More
China HOT SALE  harmonic reducer ADH-IV for robotics

China HOT SALE harmonic reducer ADH-IV for robotics

Item No.: ADH-14/17/20/25/32-IV ADH-IV:A combination product with shaft, which is easy to operateADH...

More
HIGH QUALITY Zero backlash harmonic drive ADH-V

HIGH QUALITY Zero backlash harmonic drive ADH-V

Size:14,17,20,25,32 Item No.: ADH-14/17/20/25/32-VADH-V:A simple combination product, the shaft size...

More
DURABLE Ultra-thin harmonic drive series ADSD-I

DURABLE Ultra-thin harmonic drive series ADSD-I

Item No.: ADSD-14/17-I Brand Name:Arcsec DriveMaterial: Iron, Stainless steelPlace of Origin:zhejian...

More
China high quality Strain wave gear ADS-I

China high quality Strain wave gear ADS-I

High rigidityHigh torque capacityCoaxial input/outputCompact and simple designSize:14,17,20,25,32,40...

More
China Manufacture Robot arm gearbox RV gearbox

China Manufacture Robot arm gearbox RV gearbox

Color: SilverType:RV SeriesPlace of Origin:zhejiang, ChinaBrand Name:Arcsec DriveApplicable Industri...

More
China High Precision Planetary Gearbox PL series WITH LOW COST

China High Precision Planetary Gearbox PL series WITH LOW COST

Item No.: PL01 planetary reducer used on robot arm cnc machine rotary table Output Torque: 48-160Inp...

More
THE HOT SALE Planetary gearbox PLF series for robotics

THE HOT SALE Planetary gearbox PLF series for robotics

Item No.: PLF01 Place of Origin: Zhejiang, ChinaBrand Name: Arcsec Drive Net Weight:  7.4 KG-9.8KGNo...

More
Contact Us