Grinding Hardened Steel...?

[Boonie Buster]

What kind of drill bit style grinding wheel does it take to grind hardened steel. More specifically, the inside of bearing races... :corn:

Something like this? (but in a larger bit size for a regular sized drill):
http://www.google.com/products/cata...a=X&ei=5q98T9OQKKihiAKPsqnmDQ&ved=0CG4Q8wIwAA#

 

[Binder]

You'll have to use something simillar to what you posted but use a die grinder as a drill doesn't spin fast enough. Any abrasive/ stone bit should work but a carbide tip won't be hard enough...
Making setup bearings?

 

[KarlVP]

I've always used these on the die grinder to grind hardened steel.

If in fact you are making setup bearings, this will do the trick. It takes a LONG time though. Last time, I chucked up the bearings in a lathe and spun it real slowly while I applied the die grinder. It took about 15 minutes per bearing for me to get it perfect.

 

[Binder]

I've always used these on the die grinder to grind hardened steel.

If in fact you are making setup bearings, this will do the trick. It takes a LONG time though. Last time, I chucked up the bearings in a lathe and spun it real slowly while I applied the die grinder. It took about 15 minutes per bearing for me to get it perfect.

You must be useing crap bearings....Carbide shouldn't be hard enough to cut a bearing race but hey whatever works.:cheer:

 

[KarlVP]

You must be useing crap bearings....Carbide shouldn't be hard enough to cut a bearing race but hey whatever works.:cheer:

Timken bearings. Like I said, it takes a WHILE to grind off a couple thousandths of an inch to make setup bearings, but it works.

I've made 4 sets of setup bearings the same way. :awesomework:

 

[CHOP SHOP]

Makin setup bearings takes longer and is more work that just setting up the bastards.

If you cant press of a pinion bearing 40 times without damaging it then you have no bizz being inside a diff.

A setup bearing will not have the same amount of wear and will require a final adjustment with the new bearings anyways.

 

[mark]

Set up bearings are cheap from Randy's and a lot less hassel. What you working Aaron?

 

[Boonie Buster]

I have two elocker diffs to setup, I actually have a set of "setup" bearing in the mail from a TTORA member. But im still curious about what works best for my own knowledge and possibly future use.

And yes Choppy, I should have no bidness in a diff, but since I would rather easily assemble the diff with setup bearings and get it really close and MAYBE only have to remove the final bearings once.... its worth it to me.

 

[Boonie Buster]

You'll have to use something simillar to what you posted but use a die grinder as a drill doesn't spin fast enough. Any abrasive/ stone bit should work but a carbide tip won't be hard enough...
Making setup bearings?

I guess I maybe don't know the terminology for an abrasive stone for a die grinder... I search and only found that diamond bit I linked above and some expensive carbide bits like what karl linked.

Is there a special compound or material used for hardened steel? Like what style of abrasive?

BTW, Thanks for the comments (as always) guys!

 

[GoonieGirl]

I guess I maybe don't know the terminology for an abrasive stone for a die grinder... I search and only found that diamond bit I linked above and some expensive carbide bits like what karl linked.

Is there a special compound or material used for hardened steel? Like what style of abrasive?

BTW, Thanks for the comments (as always) guys!

A polycrystalline cubic boron nitride (CBN) tool with a TiN coating is what I used to make setup bearings for my 60 but the average wheeler doesn't have the tooling or equipment like that just laying around lol. You can use a brake hone with medium grit stones but I heard its time consuming.