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PostPosted: Wed Oct 19, 2016 2:34 pm 
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Elite
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Joined: Fri Aug 05, 2011 4:17 pm
Posts: 976
Location: Farmington Hills
My Atlas 6 inch lathe is up and running first project is to turn wheels for 2 x 72 belt grinder have the wheel turned to size next step is to insert the bearing should I drill the hole for the middle of the bearing then do the larger hole for the bearing itself going to press it in how small do I make the hole.


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PostPosted: Thu Oct 20, 2016 7:46 am 
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Master
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Location: Dearborn, MI
Are you making your own 2x72 belt grinder? Did you base yours off of plans, design your own, or flying by the seat of your pants?

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PostPosted: Thu Oct 20, 2016 8:28 am 
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Joined: Sun Feb 05, 2012 10:04 am
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Location: Farmington Hills, MI
Look up the manufacturer specs for the bearing number you are using, it should provide a min/max OD for the bearing bore for a press fit.

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Kevin (Specialist in reconstituting the wood after a wayward toolpath)


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PostPosted: Thu Oct 20, 2016 9:00 am 
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Elite
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Location: Farmington Hills
This project has been on the back burner for 3 years. I made my own plans for a 2x72 grinder off of other grinders I have seen, going to use extruded aluminum for the body someone makes one on ebay using extruded aluminum kind of like my design see photo. Have a Baldor 2 hp 3200 rpm DC variable speed motor to power it. I have most of the materials just need the wheels.

Kevin - will check with bearing manufacture good idea.

Thanks, Jacob


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PostPosted: Thu Oct 20, 2016 1:54 pm 
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Elite
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Location: Farmington Hills
Found more information the bearing is a Betco 1616 rs it 1 1/8 round still no luck with hole size.


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PostPosted: Thu Oct 20, 2016 2:13 pm 
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Obsessed
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Location: Livonia
Jacob - so the wheels you're turning are aluminum, and the outer bearing race is obviously steel. Rather than going for a technical press-fit (though I would imagine that there is a formula or table somewhere to show what the interference should be) I'd turn the wheels to exactly the OD of the bearing, which I'm willing to bet you couldn't put together by hand - then apply some Loctite bearing mount and press them together (I have some at home, but don't recall the part # offhand). There ain't a whole lot of stress on those assemblies, so I wouldn't think it would be that critical.

But what do I know - advice definitely worth every cent you paid for it...

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A bad day working with tools is better than a good day doing most of the other things I have to do.
blog: http://www.stephensawyer.com


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