Ball bearing in tension roller (home made beltgrinder)

[Qbi]

Hi,

I'm making belt grinder, but I have a little problem. I don't know what size of ball bearing I should use in tension roller , and I don't have any idea how it should be mounted? Any help is greatly appreciated.

Regards

Tuco (Qbi)

 

[rashid11]

1/2" ID is convenient, as you can then mount the thing onto a
common 1/2" bolt. Also the bearings of this size sell 10 for $5.95
on Ebay.

Here's how I build them:

- turn 2" OD alum round, 2.5" long or so. Exact OD doesn't matter much,
but keep it @ 2" or so, otherwise the RPMs will be on higher side and it
will translate to more wear/tear on bearings

- drill 5/8 through (so that 1/2" shaft is "loose" within the through hole)

- bore both ends to receive the 1/2" ID bearing

Done

 

[Sweany]

http://www.mstarling.com/belt_grinder.html
Best shop made tension adjuster I know of.

I built mine with the bearing out of a auto water pump, I glued MDF to the bearing with Gorilla glue. I've used that grinder going on three years now.

 

[Qbi]

thanks for help. I've just starded building mine own homemade belt grinder
I decided to use 6001 2RS bearing with ID 12mm OD 28 mm and W 8 mm.
I will post pictures when I'll finish.

Tuco (Qbi)

 

[rashid11]

I didnt realize Pan Tuco is from Warsaw , sorry.
The size you selected should work fine.