Re: Need one-inch-wide pulley to run 6-v, postive ground alternator

Posted by HH56 On 2013/2/11 20:12:54

The 1" wide groove seems to be a difficult find. Have looked at several automotive, farm and commercial sites -- so far without success. 3/4" seems to be about max width in any pulley having the approximate bore and OD needed. The two or three commercial sites that have a wider groove also seem to have a large diameter and bore and a wide hub to go with it.

Which brings up a question on the diameter of the alternator pulley. Am wondering how small in diameter a 1" belt would tolerate before it slips or can't make the bend. The generator pulley is almost 4" but aren't alternator pulleys usually smaller because alternators like a bit more speed? I'll leave that question to someone more versed.

If someone can't come up with info on the correct pulley or if it isn't readily available, am wondering about the possibility of taking the supplied pulley to a machine shop and see if they can duplicate it with the wider groove for a reasonable price. If that could be done maybe someone else might be interested in getting one.