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The Latest Design Technologies For Gear Devices with Great Transmission Ratios - December 2014

Shuting Li

The article "The Latest Design Technologies For Gear Devices with Great Transmission Ratios" appeared in the December 2014 issue of Power Transmission Engineering.

Summary
Four types of gear devices with great transmission ratios (simply called great ratio gears or GRGs) are discussed in this paper. They are strain wave gearing devices (SWGs), trochoidal gear reducers (TGRs), hypocyclic gear reducers (HGRs) and James Ferguson-type planetary drives (JFDs). The structures, advantages and basic performances of these four devices are compared. The latest design and strength analysis methods are also introduced. To conclude, the future tendencies of GRGs are predicted.

Keywords
Transmission Ratios, GRG, Ratios, Gears, Trochoidal gear reducer, TGR,

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