New Byers 20" x 3/4" x 640 tooth research drive complete with
massive worm housing, mounted reduction gears, Bodine synchronous motor,
and clutch with 3.501" bore (for 3.500" shaft). Replacement cost
is non existent, they are no longer made. Original pricing
was about $5000. Selling for $3600 plus shipping. Email "email@example.com"
for any questions.
I also have a $2000 Byers stepper motor controller
with includes 2 stepper motors. Ed Byers Company used to
charge $2000 plus the motors, selling for $1100 with the purchase
of this gear but will sell gear without digital steppers and
just the Bodine synchronous motor