Naio wrote:
STBRetired wrote:
Make sure you use a long enough set screw that you don't have to worry about ripping out the last thread on the sprocket. Also verify that the keyway in the sprocket has been drilled all the way through so that the set screw does not damage the keyway.
I'm sorry, I don't really understand what you're saying. Especially the second part.
I found my sprocket: This is the one I currently have on the keyed shaft, and that I want to try to put on the D shaped shaft. I see this place is still selling them, so I can get another one.
http://www.staton-inc.com/store/index.php?p=product&id=1958
For the first part, I think he’s concerned that if you wind a set screw that normally stops against a key but now has to reach the flat of the D, it may be too short to engage enough threads in the sprocket.
For the second part, if the set screw is tapered at all, the outermost edges of the threads in the sprocket as they head into the center bore may not be completely clear of metal. So if you now thread a longer set screw completely through the sprocket into the D area it could flare the key surface a bit.
