Answer / sarit

BECAUSE THEY PROVIDE POWER.EVEN BALANCING AT ROUGH AND
SLIPRY SOIL

Answer / abhishek singh

We know that Torque=Force*Radius.
As the the radius back wheel of the tractor is bigger it will
produce more torque and also the traction should be more.

Answer / chandan

so that tractor can take short turn while using in feild
due to short radius of front wheel.

Answer / muhammad usman

because the back wheel needs to produce more and more torque
to pull more n more load........

Answer / hari. salem. tn

in tractor front wheel only for turn the vehicle and support
the vehicle. rear bigger wheels designed to pull heavy load
and over come in rough areas.

Answer / kumud. chhanada

as the tractor is generally used for traction purpose for
getting max torque the rear wheel is greater.

Answer / amit dubey

Chandan your answer looks correct but question is not regarding front wheel its regarding rear wheels.

rear wheels are bigger because they provide better grip on slippery farming land because of more area of contact with surface.

Answer / bishu

1)Since driving wheel in Tractor is in rear wheel and driven
wheel is in front. If driving wheel(i.e,rear wheel) rotate
for one time then driven wheel(i.e,front wheel) rotate more
than one time because of it smaller size.. As the rotation
increases in front and rotation decreases in rear lead to
more velocity ratio....... TO INCREASE VELOCITY RATIO IN
TRACTOR BACKWHEEL IS BIGGER THEN FRONTWHEEL

Answer / bishu

TO INCREASE TORQUE

Answer / t.naresh

if the back
wheel is to
pull heavy
loads.wat abt
in jcb.in case
of jcb we take
the loads in
front in this
case front
wheel is
smaller then
the rear one.as
tractor is used
most of the
time in fields
i.e in slippery
area to give
more grip rear
wheels are
bigger

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