Uni 1 form roller gear run out

Now that the carriage bounce is sorted out thanks to Paul and Ray, the next item is the crazy wobble in the form roller gear. I tried to attach a video to this post but failed somehow. The video here shows how bad it is.

The set screw and split sleeve are present in the end of the form roller and are tight, but I can’t see any sign of the gear being keyed to the shaft. I’ll have to disassemble it to see if the Woodruff key is present. Are there any subtleties to taking this apart or putting it back together?

Also, the short, spring-loaded section of rack that this gear first engages has a non-standard tooth profile. Is this factory or has the wobbly gear worn the teeth this badly? 

Despite this ugly scene, the press still inks and prints fine but this needs to be fixed.

(Please don’t judge the atrocious filth on the rack too harshly. I’ve yet to make it over to that side with the toothbrush, q-tips and popsicle stick scrapers. I’m convinced the previous owners of this press never cleaned anything except the rollers.)

Many thanks for any advice.


Notify of
Oldest Most Voted
Inline Feedbacks
View all comments
Paul Moxon, Moderator
3 years ago

I have seen both steel and bronze bushings. It’s possible that yours hd been rehabbed. A new bushing should negate the wear on gear teeth.

Paul Moxon, Moderator
3 years ago

Gears that slip off too easily might have a be reamed at the bore. A gear that won’t budge from the core can be struck from the inside while rotated by hand.

By design, starting teeth have a pointed profile.

Copyright © 2024 vandercookpress.infoTheme by SiteOrigin
Scroll to top
Would love your thoughts, please comment.x