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View Full Version : 40-taper arbor question



Doc Nickel
01-14-2009, 07:54 AM
I have a large collection of cutters for my small horizontal mill, a fair handful of which take a 7/8" arbor.

I've managed to locate one 7/8" arbor for a reasonable price so far (though spacers are proving somewhat more difficult) but what I'd really like to have is a 7/8" stub arbor.

Does anyone know of an NMTB-40, 7/8" shank stub arbor? Preferably an import or at least used, so I can actually afford it? :D

Doc.

JCHannum
01-14-2009, 08:48 AM
7/8" arbors with 7/8" shanks will not be a hot seller in 40 taper. You might as well resign yourself to making one although it will require a lot of metal removal.

Or possibly make a 40 taper by something else adaptor to take advantage of the smaller shanks available in R8 or Morst taper f'rinstance?

jkilroy
01-14-2009, 01:02 PM
Making one is not as hard as you might expect. Here is a pic of a 1.25 stub arbor I made.

http://www.isidev.net/public/kilroy/100_0687.JPG

I made it to mount in and end mill holder. The spacers I had on hand. Yes, the nut is threaded left hand. A 7/8 would be a lot less work, I carved that one from a piece of 2" round.

jeep534
01-17-2009, 01:27 PM
I have a 40 to 30 taper part maybe you could find a 30 taper arbor and use an adpter..... just a thought

archie =) =) =)

thomas1
01-19-2009, 05:36 PM
I have a large collection of cutters for my small horizontal mill, a fair handful of which take a 7/8" arbor.

I've managed to locate one 7/8" arbor for a reasonable price so far (though spacers are proving somewhat more difficult) but what I'd really like to have is a 7/8" stub arbor.

Does anyone know of an NMTB-40, 7/8" shank stub arbor? Preferably an import or at least used, so I can actually afford it? :D

Doc.

Have you tried here Victor Machinery (http://www.victornet.com/cgi-bin/victor/productlist.html?subdepartments=Milling+Machine+Ar bors%2BSpacers%3A320%2C1023%2C321%2C322%2C323) ?