reduction gearbox design

[joe3204]

i have to design a 2 stage reduction gearbox. helical gear to be used in the first stage and spur to be used in the second stage....

i need names of books which will help in doing the same. i have to design the gearbox and select the materials and everything..URGENT..

thanks in advance,
joe

[krishnamachari]

use design data book for select the gear material, the teeth on gears are depends up on the design

[joe3204]

thanks but i've already submitted my design...