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is it possible to specify teeth specs?
elhanan_maayan
Member Posts: 17 ✭
lets' say i wanted to make a sprocket like the one on the table that that should threaded on to that spindle, all i know that this a sprocket for T8F chain
and these are the specs, (3rd line from the top) can i input those somewhere?
and these are the specs, (3rd line from the top) can i input those somewhere?
0
Comments
https://www.onshape.com/cad-blog/tech-tip-lets-build-a-sprocket
ON EDIT:
you'll need to make a private copy of the Onshape document associated with that tech tip, go to the tab called 'Sprocket Tooth Profile', right click on the tab and choose "Download", and then you can enter the roller diameter, pitch and number of sprocket teeth into the spreadsheet to calculate all the data you need to enter into the sketch provided in the "Tooth Profile" Part Studio.
It's arguably the best, easiest and yet most adaptable, sprocket design tool available anywhere.
The spreadsheet embedded in that document requires only the three data I listed (which are all in the roller chain chart published in the OP) in order to calculate things like tip diameter, pitch diameter, and tooth profile. That leaves the width of the sprocket, but this is essentially a matter of user choice combined with material availability: it just has to provide a clearance inside the roller sideplates. A usual plate thickness would be 0.85 to 0.9 x the width between inner plates.
IF the sprocket is being turned from solid material, a common formula is
Sprocket thickness = 0.93 × Width between inner sideplates - 0.15mm
This absolutely satisfies the OP question.