Truing grinding wheels

[peccary]

Have tried several different wheels, from different manufactures, on my 8 inch bench grinder and they are all out of round and vibrate excessively. Tried truing them but with minimum success.

Anybody have a method or tool recommendation to get these thing running true?

[nissancrawler]

Are you using a dresser? If that's not working, I would say it's time for a new wheel. That, or check the shaft on the grinder, maybe it's not the wheels.

[dopeassjackson]

im also having trouble with a 12in grinder. the wheels are so unbalanced the thing walks around the shop. its a china brand grinder so i may just throw it away and get a decent one.

[Cork]

we got a dresser with the little round wheels on it, works fine. Only thing we use the grinder for is sharpening things, drills, tungstens. We got belt grinder for grinding steel.

[peccary]

Are you using a dresser? If that's not working, I would say it's time for a new wheel. That, or check the shaft on the grinder, maybe it's not the wheels.

Using an inexpensive dresser. The problem with them is that they do not do a very good job of eliminating runout. I have several wheels that have over 1/16 inch runout so they cause a huge vibration.

The grinder shaft is ok it is a Jet grinder , 3 months old , and runs smooth with the original wheels but they will not last forever and I want a 24 and 36 on the thing at the same time.

[peccary]

im also having trouble with a 12in grinder. the wheels are so unbalanced the thing walks around the shop. its a china brand grinder so i may just throw it away and get a decent one.

The china stuff may be junk but from my experience the wheels are the biggest problem.

[keebler303]

Buy a single point diamond:

http://www.use-enco.com/CGI/INSRIT?PMAKA=398-8500&PMPXNO=945880&PARTPG=INLMK3

Then make a block of metal to hold it like this:

http://www.cnczone.com/gallery/data/500/medium/grinder_dresser.JPG

You can adjust the depth of the cut by adjusting the diamond in the block. You use the work support? (whatever its called) as a guide. it makes the diamond only cut on the high spots of the wheel because the block holds it from 'riding' the wheel. You can slide it back and forth to cover the whole wheel.

This is pretty much how you dress a wheel on a surface grinder.

Good luck

Matt

[peccary]

Buy a single point diamond:

http://www.use-enco.com/CGI/INSRIT?PMAKA=398-8500&PMPXNO=945880&PARTPG=INLMK3

Then make a block of metal to hold it like this:

http://www.cnczone.com/gallery/data/500/medium/grinder_dresser.JPG

You can adjust the depth of the cut by adjusting the diamond in the block. You use the work support? (whatever its called) as a guide. it makes the diamond only cut on the high spots of the wheel because the block holds it from 'riding' the wheel. You can slide it back and forth to cover the whole wheel.

This is pretty much how you dress a wheel on a surface grinder.

Good luck

Matt

Thanks I think this is the best way to do. I have looked at commercial tools that do this but they are lots of $$. This should be easy to build

The wheels I have bought , two from Enco and a Norton, have >0.80 in tir and are useless as they come out of the box. Would be great to be able to just buy a wheel that is concentric with the mounting hole to start with.