Where to get lightweight flexible coupling?

[Travis Covington]

http://www.fenner.com/btlhome.nsf/00...2568b2004df9eb

http://www.pennaircatalogs.com/Supplier%20Catalogs/Vescor/CEC_Cplg.pdf#search='cec%20coupling


Not sure where you can still get them, but it looks like you need the C100 hub style. We used the Nitrile (Buna-N?) spyders in the past since they are the softest and offer the most misalignment error.

You would need to make a sleeve to make the bore smaller as Andy has described in the past. Simply broach a hex in the coupling and make a corresponding insert out of aluminum or steel with the 1/2" keyed bore you require.

[Gui Cavalcanti]

You could always use previous year's black plastic couplings, if you want the ultimate light-weight coupling. You'd have to buy the hex shaft that fits in them, and bore/broach it to 1/2" with keyway.

[sanddrag]

First off, the above is an excellent idea. I believe we have the parts, so we will consider it.

As for what I was originally looking for I believe I have found it. Not super light but better than iron, Applied Industrial sells aluminum LoveJoy couplings.