Inexpensive Grinding Wheels and Disc Supplier

[SPYDERLK]

i find the "good" ones, that last a long time really don't do much work. i like a wheel that wears fast enough to keep it cutting good.

we've had good luck with the NAPA brand wheels, the cut good, but last well too. kinda a good ballance.

Yes, there is a science to balancng the abrasive and bonding. Abrasive should stick for a while as it fractures and exposes new cutting edges, then break away to get fresh grit working. A wheel has to wear to keep cutting, but you dont want to throw sharp grains away. I have some that last forever but cut poorly after the 1st minute, and others that evaporate while cutting very fast. The quality wheels fall between and stay fast by making optimum use of their abrasive.
larry

 

[theonlybull]

Yes, there is a science to balancng the abrasive and bonding. Abrasive should stick for a while as it fractures and exposes new cutting edges, then break away to get fresh grit working. A wheel has to wear to keep cutting, but you dont want to throw sharp grains away. I have some that last forever but cut poorly after the 1st minute, and others that evaporate while cutting very fast. The quality wheels fall between and stay fast by making optimum use of their abrasive.
larry

personal experiance, i find the quality "name brand" wheels tend to not wear quite fast enough to grind agressively. they do last, but i've found middle of the road wheels to last/cut better to either end of the spectrum.

i'm not the largest user, but, at work i use 50-75 1/4" grinding wheels, and 100-150 0.050" zip cuts in the run of a year