Features of the end-toothed with the circular-arc:

  Wide meshing surfaces, long service life, high accuracy, good

automatic centering, transmitting bigger torque, using the curvic

coupling, the complicated monolithic structure can be divided into

several simple structure, therefore, it is convenient for designing,

manufacturing, assembling.Driving with end-toothed is a new one

in recent years. Because of less teeth number, compact in structure

and higher loading capability, it can acquires bigger transmit ratio

if adopting certain combination of tooth numbers. For example, at

the reducer system of satellite anttena, appropriate combination of

tooth numbet can make the transmit ratio up to 50000, efficiency

up to 0.7 – 0.75. The research and test on the end-toothed show

that the contacting stress of the transmission with the end-toothed

is rediced by 25% - 30% compared with similar mechanica of

involute. At the same dimension, meshing module can increase

by 2 – 2.5 times, reducing the bending stress by 3 – 4 times and

improving loading capability and wearing quality, reducing both

weight and dimension.