multi-ratio gear info required

Hi,
I don't know if anyone on this newsgroup can help but if you can I'd
appreciate it.
I'm trying to repair a small paper shredder. It has a motor that turns a
number of gears that eventually turns some rollers to pull the paper
through. One of the gears has broken (they're all plastic). Unfortunately
it's the one that changes the ratio of the turns by being in two parts: one
large diameter plate with 30+ teeth and a narrower section along the same
axis with about 12 teeth (it's the bit that's broken). I've spent ages on
the internet trying to find this type of gear to no avail.
If someone recognises what I'm after and knows it proper name and where I
could buy one I'd be grateful.
Regards,
Don
Reply to
Don
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Unfortunately
Almost certainly you will have to buy the two gears as individual entities and pin them together, unless the shredder manufacturer can supply parts. Try the usual gear supplies such as :
HPC
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Muffet :
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Good luck,
AWEM
Reply to
Andrew Mawson
from your description this:
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be of use, tho the gear is likely to cost more than a new shredder....
Dave
Reply to
dave sanderson
Thanks. Metal gears definitely look a bit expensive for what I'm trying to.
Reply to
Don
How bad is the damage and how much torque is it subjected to? You could press it into something like blu tack to create a mould - rotating it to rebuild the broken section and then pour in some form of resin.....
Obviously if it's completely shredded () then you won't be able to do it.
Michael
Reply to
Michael
I didnt intend to point at the metal ones, they do all sorts of materials, the doubles are available in delrin tufnol, brass, steel and stainless. I dont think plastic ones are any cheaper tho... Its worth requesting their catalogue in any case, its full of all sorts of useful gears and stuff.
Dave
Reply to
dave sanderson
That's a good solution and have used similar idea to fix broken teeth on plastic camera gears. Drill the centre boss, tap for a small piece of studding or long screw. Then build up the gear profile with silver or even soft solder and file to shape. An even cruder method is to use soldering iron heat to embed metal into the boss and use steel epoxy to create the tooth form, but doubt if that would be strong enough for a shredder...
Chris
Reply to
ChrisQuayle

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