Sears 10" Radial Arm Saw to 12"

[boalex]

I am trying to convert my 10" Sears Radial Arm Saw to carry a 12" blade. The 10" blade has a 5/8" arbor and the 12" blade requires a 1" arbor. Does anyone know where I can find an arbor adapter so I can use a 12" blade ???

balexander@athenspaper.com

[MrkCrwly]

You probably won't get much help as the changes could be dangerous. Everything on a 12" saw is beefier to handle the added stress.

[david_b]

It's not going to work. For one thing, the blade guard won't fit the larger blade.

[kornphlake]

I'm not sure how much it really matters with wood, but the RPM of a 12" blade should be a bit slower than a 10" blade as well as what the above have mentioned.

[bobbarkto]

Most 12" blades are rated over 4500 rpm so from that aspect it would be ok...

But trying this is probably dangerously wrong. :eek:

If the arbor can stand the stress (unlikely, that's why 12" blades have a 1" arbor hole in the first place) the bearings most likely won't hold up. They're rather small on a radial saw like that.
They sacrifice much to get: a little extra cut depth out of a 10" blade, a low price and low weight.
Compare the construction of a 12" saw to your 10" Craftsman and you might notice the extra mass on the larger saw.

Without any guard (are you thinking of adding a guard?) and bearings likely to fail, I wouldn't be in the same room...