Replies

1. 
   sparrow | Oct 15, 2006 09:38pm | #1

   Porter Cable has guide bushes over 1" diameter.

2. 
   BruceS | Oct 16, 2006 12:55am | #2

   What type of router do you have ?  And does it use the standard PC style 1 3/16" bushings ?   The largest PC style I have is 7/8" ID and     1" OD.  Is it possible for you to use a piloted (with bearing) ogee bit ? Or put the template below the piece your routing and then use a piloted bit.

   Work Safe,  Count to 10 when your done for the day !!

   Bruce S. 

    

1. 
   Christian25 | Oct 16, 2006 02:06am | #3

   Thanks for the speedy reply, Bruce. I am using a 21/4 horsepower Hitachi variable speed router. I was thinking about just using a bearing ogee but again, I need a bearing that is larger than the bit which is a full inch. I have a dadoed sqaure that goes down about 3/8" so I cannot put anything underneath the piece that i am working on. I just purchased a plastic bushing which is a full inch and I am hoping that it will work. The bit will not fit inside but I think that i can use it flush to the template. Also, can I put a 1"+ bearing on the upper shaft of the ogee bit?? Thanks again and look forward to your reply.Best,
   Christian

1. 
   BruceS | Oct 16, 2006 03:44am | #4

   Here is a possible solution for you,  It's a top mount bearing kit available from  http://www.eagleamerica.com   In the search box type in part #          196-1800k   It's a 1 1/8" OD bearing, 1/2" ID with stop collar and allen wrench.  Providing you have enough shank on the bit, bearing and stop collar will take up 9/16".Work Safe,  Count to 10 when your done for the day !!

   Bruce S. 

    

1. 
   Christian25 | Oct 21, 2006 06:29pm | #9

   Thanks a lot for your reply, really helpful...keep up the good wood work.

3. 
   cowtown | Oct 16, 2006 08:30am | #5

   Of course there are guides which are more than 3/4", tubble is they may not be sold by your local purveyor of "fine woodworking tools"!!!

   What ya need to do is to find a "transmission supply" shop- nope not one that fixes automotive transmissions, but one that sells bearings and bushings.....

   If you need, for example, a 3" bearing you go there and buy one.
   Trubble is it probably has a 1 1/2" hole in the centre, and that might not fit yer 1/2" or 1/4" shank bit. So you buy brass bushings to make up the differenceand you may need more than one!

   Ya, you may have to use a hack saw to trim them to length, and you will need a centre punch to lock them together, but in these kind of shops, the constraints of the router bit mfgrs become non-existant, you are only limited by your ability to visualize the requirements of the job and how yer gonna accomlish it.

   Cut yer bushing to the thickness of the bearing, put it in place and dimple the edges with a centre punch three or four times and it ain't going nowher. You suddenly got a 3" bearing to fit on a 1/2" shank

   One other benefit, these "transmission supply" folks rely on their product for their income, so substandard cheapo bearings just don't seem to be in their spectrum of operation, unlike some importers of cheapo and substandard crap sold to woodbutchers. Nuff said.

   anyway, thats what I do when I run into diffulties with temnplates, guides etc.

   Eric in Cowtown.

4. 
   cowtown | Oct 16, 2006 08:33am | #6

   postscrip

   I forgot to add that you can add bushings on the outside of the bearings in the same fashion.

   at 30krpm, you might wanna make sure yer centre-punch dimples is equally spaced eh?

   Eric
   in Cowtown

1. 
   BruceS | Oct 16, 2006 04:37pm | #7

   Yes,  Bearings inside bearings will work.  But I would add a couple of drops of  Loc-tite to insure stability.  Also not all bearings are kept to very tight tolerences.  A few thousanths will make a big differance, too small or too big.  Freezing the inside bearing(dry Ice works great) and boiling in oil the outside bearing will help a lot in getting them together.Work Safe,  Count to 10 when your done for the day !!

   Bruce S. 

    

5. 
   charlesm | Oct 16, 2006 10:06pm | #8

   You didn't indicate the exact profile you wanted but how about something like this 39-524:

   View Image

   Charles M

   Freud America, Inc.

1. 
   Christian25 | Oct 21, 2006 06:30pm | #10

   Great suggestion, thanks a lot. Christian