how to find a part for an old saw?

here is what my fellow asked me to get:
Bushes for saw
Sarcomata Industrial worm saw
7 1/4" type 135276100
120 volt, 13amp, 44000RPM

i cannot find this manufacturer online. can anyone decipher this for me and point me in the right direction?
thanks so much!

p.s. my half-finished arbor hinges on your answer.