Looking for replacement grinding wheels over stock grey wheels

[PurpLev]

Dave, Thats a good use for the white wheel!

 

[Dranreb]

I've been looking to get a couple of new wheels, so this thread has been very helpful, I came across these blue wheels, a tad pricey to say the least!

http://www.peterchild.co.uk/osc/bluewheel.php

Any thoughts on these?

They would have to be good to justify spending that much!

Bernard

 

[mrbreezeet1]

Tsized well, priced well and are J class:

http://www.sharpeningsupplies.com/Norton-White-Grinding-Wheel-P38C20.aspx

I found that company to have the best price's too.

 

[Ulma Doctor]

I also saw some norton blue wheels. Anybody using those?.
I'm finding this thread to be very informative. Some more good links for the different wheels would be great.

i have a 5 hp 3 phase 16" magnetic rotary table surface grinder , manufactured by Pieco .


i have a blue wheel on the unit now.
i use this machine primarily for resharpening hardened meat grinder extrusion plates,
but it can flatten any ferrous metal from 1/8" thick to 16" thick and up to 16" in diameter.
the surface grinder has an 8" diameter cup type grinding wheel that is 4" deep .
it's a coolant fed beast , having a table that is electromagnetic and counter rotates to the direction of the grinding wheel .
the magnetic rotating table turns at 100 rpm, the grinding wheel turns at 1725 prm.
the machine was built in the 70's and gets used 2 days a week, a good old workhorse.
very accurate

the blue wheels give a fine finish, but have a tendency to load up moderately quickly.
i have used the pink wheels with great success as a side note.
grey wheels cut nicely, but seem to leave a coarser finish.

 

[architard]

Sharon,
I thought I'd throw in my 2 cents as a fellow woodworker. In terms of touching up woodworking tools, I switched to the white Norton wheels sold by Lee Valley. They are relatively soft (Grade H) aluminum oxide and they run very cool. It's helped me from ruining the temper on many an expensive woodworking edge tool. They come in 80x and 120x. I buy the 80x.

These are highly friable. Meaning that they shed old material quickly to expose sharper grit. I believe this is a contributing factor which helps them run cooler than others. The obvious drawback to them is that they wear out pretty quickly and you have to dress often. However I only use this wheel on my woodworking tools, when I get a big nick, or have to change the angle of the tool. Otherwise I stick to my water stones.

 

[PurpLev]

Thanks Kent,

This is a rather old thread - I have since purchased a x60 blue wheel and a x150 white wheel that I've been using and they are both great - cut fast and cool HSS. haven't tried them on any woodworking blades yet, but I think they'll do just fine for rough shaping to speed things up before I take it to the slow water grinder for sharpening.

 

[Splat]

This is a rather old thread - I have since purchased a x60 blue wheel and a x150 white wheel that I've been using and they are both great - cut fast and cool HSS. haven't tried them on any woodworking blades yet, but I think they'll do just fine for rough shaping to speed things up before I take it to the slow water grinder for sharpening.

Hey Sharon. Digging this one up from the grave. What exact wheels did you go with, please? Also, how do you like them now that you've been running them for a good while?