I have some 1970's Atlas F9 wheelsets with split plastic gears. I currently have new wheelsets and gears on order from Northwest Shortline.
Has anyone ever had any luck in resetting these gears with some type of adhesive? I can experiment as I have nothing to lose, just wondering what recommendations for cleaning and setting the gears are.
I recently tried some Loctite brand liquid CA and have been quite impressed.
Your Thoughts?
Replies sorted oldest to newest
You have 2 major problems.
#1 a gear that is typically made of nylon or some other industrial plastic, being soaked in lubricant for much of it's life, near impossible to glue
#2 A gear pressed over a shaft with an intentional interference stretch fit that cracked- thus making the teeth out of pitch. Basically every time the crack between the teeth tries to mate to the other gear teeth, there will be a bump, notch, or jam. At best the teeth wear faster and at worst, this just breaks and jams.
So I'm not saying it's impossible, but on a line from "likely" to "never ever in a million years"
I had thought the replacement gears are metal?
someone on shape ways has 3d printed ones , I had my doubts but they push fit and have been running a long time.
@Dave Koehler posted:I had thought the replacement gears are metal?
NWSL's replacement gears are some sort of plastic...
Mark in Oregon
Wondering why these pinions aren't made of brass on the Atlas and some others. Is it really that much more to produce.
"Wondering why these pinions aren't made of brass on the Atlas and some others. Is it really that much more to produce."
Well, squirting some liquid into a mold and producing 50 at a time for about 5 cents each compared to machining brass ones one at a time...yes, big difference. That said, I know that people are using the shapeways parts and they are cheap, so why argue with what works.
Access to this requires an OGR Forum Supporting Membership
