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Advantages of Strained Wave Gears

update:2022-11-17
abstract:The strain wave gear is a type of gear that uses the principle of elastic deformation to transmit en...


The strain wave gear is a type of gear that uses the principle of elastic deformation to transmit energy through the mechanical system. It is a compact design that offers high reduction ratios and zero backlash. Its coaxial orientation and small size make it ideal for lightweight systems. In addition to their simplicity, strain wave gears also offer several advantages over conventional gear sets.

Among these is their ability to transmit precise motion. They can be manufactured with different tooth shapes and sizes. Their size and spacing are important considerations when choosing a strain wave gear. A proper gear will be manufactured with teeth distributed at several locations on the circumference. This makes them tolerant to minor eccentricities that do not affect the input-output relationship.

Strained wave gears are made using two kinds of teeth: one is fixed on the outside and one is flexible. The latter meshes with an outer ring. When the two meet, the inner ring is distorted. The result is a high efficiency and high ratio gearbox. But as you might expect, these gears are expensive.

The formula for determining a gear ratio is not the same for strain wave gears. Generally, the gear ratio is expressed as a fraction of the ratio of the teeth. But, it should be noted that there are no standard methods for measuring this. The first method relies on a multiplier of n, and the second one relies on subscripts.

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