- Joined
- Oct 31, 2014
- Messages
- 444
A couple of years ago I am pretty sure I found some flat chain sprocket blanks without a drilled center hole, just a located center drill point so I could bore out to the shaft size I wanted.
The sprockets I find now all are already center bored for the smallest shaft size the manufacturer thinks is appropriate - in my case I'm looking for a 40-series roller chain sprocket with 15 teeth. They come pre-bored for 1/2" and that's way bigger than I want.
Bushing down is not a great option because my plan is to bore to accommodate threading the center of the sprocket and then securing it to the shaft with a jam nut on each side. Can't really do that if I want a 5/16" shaft and the hole is already 1/2".
Has anyone seen a source for un-bored sprockets or am I imagining that I found them a couple of years ago?
Thanks in advance
Stu
The sprockets I find now all are already center bored for the smallest shaft size the manufacturer thinks is appropriate - in my case I'm looking for a 40-series roller chain sprocket with 15 teeth. They come pre-bored for 1/2" and that's way bigger than I want.
Bushing down is not a great option because my plan is to bore to accommodate threading the center of the sprocket and then securing it to the shaft with a jam nut on each side. Can't really do that if I want a 5/16" shaft and the hole is already 1/2".
Has anyone seen a source for un-bored sprockets or am I imagining that I found them a couple of years ago?
Thanks in advance
Stu
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