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Old 04-22-2019, 09:08 PM
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milomilo milomilo is offline
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Default Old Style Bench Grinder

I restored this old style babbit bearing grinder a few years back and never finished the project. My son, Scott, is coming tomorrow from San Diego to visit for a couple weeks. I gave him some welding practice last fall after we got back from our AK trip and he picked up pretty well. This will be a father/son project, as he will do a majority of the welding.

I milled out the base plate with slotted holes in order to do V belt adjustments. I had to add a small plate off to the side of the base plate for the motor mounts. The base plate is a chunk of 12" wide channel I had from a few years back. Added a water cup holder for cooling. The grinder has a coarse 3/4" wheel and a 1 1/2" fine grit wheel.

The grinder has a flat belt pulley on it now which will be replaced with a V belt pulley I need to bore out to fit the 7/8" shaft on the grinder. Have to selected the motor pulley yet as I have not done the math for the pulley diameter.

Plan to mostly use it for sharpening large drills. Still have to add a hanger for safety glasses. I got the 1 hp, 3650 rpm motor from Bubba. Traded him a 1/2 hp 3 phase for it.

Not sure yet if I will add guards or not. Yeah, I know I should.
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Old 04-22-2019, 09:10 PM
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More pics.
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Old 04-23-2019, 10:05 AM
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MetalWolf MetalWolf is offline
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Chris are you going to change the belt drive to a V belt...
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Old 04-23-2019, 12:29 PM
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Chris are you going to change the belt drive to a V belt...
Yagotta read the post
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Old 04-23-2019, 02:01 PM
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Yagotta read the post
eew, My bad I saw that but I guess was focused on the pic so it was honest to goodness brain fart...
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Old 04-23-2019, 04:51 PM
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Just finished the flat belt to V belt conversion. Mocked up everything and the pulleys are all aligned. The arbor shaft had no key way so had to do some drilling of dimples through the set screw holes in the shaft to get a place for the set screws to bite into. The motor has a 1/4" key way and I found a pulley for it in the shop. Now to measure and see if I have a V belt hanging on the wall in Still have to shim the babbit bearing caps for proper clearance.
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Old 04-23-2019, 06:24 PM
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Originally Posted by milomilo View Post
Just finished the flat belt to V belt conversion. Mocked up everything and the pulleys are all aligned. The arbor shaft had no key way so had to do some drilling of dimples through the set screw holes in the shaft to get a place for the set screws to bite into. The motor has a 1/4" key way and I found a pulley for it in the shop. Now to measure and see if I have a V belt hanging on the wall in Still have to shim the babbit bearing caps for proper clearance.
You didn't use your new mill???
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Old 04-23-2019, 06:50 PM
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You didn't use your new mill???
Yep I did. Milled all the slotted holes with the mill.
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Old 04-23-2019, 07:54 PM
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Why not the key seat for the shaft
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Old 04-23-2019, 08:42 PM
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Why not the key seat for the shaft
I do not have any cutters for woodruff keys.
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