It's better on the slack side, as the bearing will be under less tension that way and will last longer. It will work on either side though. Good luck, Jeff Dayman >From: Harry Wade <hww@xxxxxxxx> >Reply-To: modeleng@xxxxxxxxxxxxx >To: modeleng@xxxxxxxxxxxxx >Subject: [modeleng] Re: Mystery thread >Date: Thu, 22 Nov 2007 08:04:16 -0600 (GMT-06:00) > >Jeff, >Ths isn't a saw problem, which was made in the USA, the thread problem was >with the gearbox - David Brown/Made in UK. In any case the thread problem >is solved as I described in my last post - I simply tapped for a new >grubscrew. The motor drive unit is now assembled and installed and runs >very nicely. > >My next task will be to fabricate the step pulleys and this brings me to a >question for the group, which is, . . . in order to slack the V-belt for >speed changes I plan to use an idler pulley and in thinking about that it >occurred to me that the idler must be on the "slack" side of the driving >pulley as opposed to the "pulling" side. Am I correct in this, or does it >matter in the long run? > >Regards, >Harry > >-----Original Message----- > >From: Jeff D <jeffdayman@xxxxxxxxxxxx> > >This machine is Rockwell and will either be made in USA or Taiwan. It is >very unlikely that it would have any Whitworth or cycle threads. > >MODEL ENGINEERING DISCUSSION LIST. > >To UNSUBSCRIBE from this list, send a blank email to, >modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject >line. MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.