• The
speed reduction in a final drive varies from 4:1 to 20:1, depending upon the
type of
vehicle
•
This
is done either in one or two stages. For
lesser reductions, say up to about 7:1 single
reduction is used
• While
higher reductions are achieved in two steps called double reduction final drive
•
Double reduction final drive is used in farm tractors and earthmoving machinery
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