Needle roller bearing column
and spindle supports.
bought steering wheel.
Roller chain reduction to
main steering arm - reduces effort to turn and lessens
back loading through to column.
Screwed bar connecting rods
with ball & socket joints.
complete drawing set for the Yard Tractor is available
from our Plans Order page
steering column braced to chassis.
The yard tractor's steering
mechanism uses a single stage roller chain reduction to provide
a comfortable ratio between steering wheel turns and front wheel
direction. One full turn of the steering wheel takes the front
wheels from full lock to full lock. This allows single hand
steering over the full range. This gearing together with the
tilted king pin arrangement on the front wheel supports makes
for an easy to turn tractor design. Robust 3/8" pitch (#35)
roller chain is used and the column and steering arm
sprocket/spindle are mounted on needle roller bearings. The
steering and track rods are from threaded steel bar fitted with
ball and socket joints to allow free movement over the full
steering range and the means for wheel alignment.