Oneway 2272 5/8' Grinding Wheel Balancing System

TLDR; Includes parts to balance a left and right wheel for a bench grinder. Takes a bit of time but removes all the vibrations.OK....so I have written a couple of reviews in my life on Amazon and this product actually changed everything I thought I knew about grinders and grinding wheels...so here I am.The company that makes this builds a first class product but the marketing and information on Amazon is limited and the company website is not much better. This needs to be be better documented and highlight what you get as it is a complete kit for balancing two wheels for a 5/8 inch shaft bench grinder.Inside the package is the balancing stand and that is a heavy, but simple bent sheetmetal stand with two bearings mounted to create a low friction shaft for the wheels to turn on during the balancing portion.Next you will find a set of inner and outer flanges with right hand and left hand threads. The inner flanges are smooth with the machined in arbor that goes through the 1 inch hole your grinding wheel will need to have.At the end of the arbor are the threads that mate up the the outer flange that makes up the balancing portion with a raceway around the perimeter for the balancing nuts and screws.You will need to load up the screws , washers and nuts into the outer flanges and then follow the instructions on how to balance your wheels.These components are made out of very high quality anodized aluminum. The machining is excellent and they have not cut any corners as you look at the parts you can see a lot of chips had to be made to make the flanges integral to the arbor but that is the only way to get perfect concentricity and strength.Once you have your wheels balanced you will now mount them on your grinder. Included are two flat machined drive washers that go on the shaft of your grinder first. This provides a much larger contact surface and a flat area to tighten up the wheels against. You will only be reusing your grinders retaining nuts as the dished washers that came with the grinder are no longer needed.A key thing to remember is that you now have a balanced assembly that is held together with left or right hand threaded flanges. You must make certain you put the wheels on the appropriate sides or the tightening of the grinder retaining nut will loosen the flanges and you get to balance your wheels all over again. Ask me how I know this =)Once everything is all back in place you turn on your new or old grinder and you get to see what perfectly balanced wheels can do for your grinder. I was amazed at how much it improved my already decent grinder. I have a feeling there are a lot of grinders sold today that are really just in the need of balanced wheels. Also with the wheels balanced the load and wear that is on the grinder bearings is greatly reduced.This is a fantastic product and the world needs to know about it and the listing here needs to be spruced up to show off this great product!

Short story:This product is phenomenal. My old grinder is now working PERFECT, absolutely no wobble or vibration. I had tried everything before and was ready to junk it. But this system fixed it so well, it even passed nickel test. (see picture below with nickel while running not only 1780, its actually running 3500 rpm). System is worth every penny and well made, only instructions could be a little better, but common sense can figure it out.Long story: I have a 2008 Delta variable speed bench grinder, which I started to use for sharpening woodworking tools recent;y. What always bothered me was that the Grinder always shook the heck out of the workbench its bolted to. It's bolted down all its life because it would run away from me and eventually jump off the workbench. So, I spent 4 hrs adjusting, shimming a.s.o. went the whole nine yard. All this minimized the wobble of the wheels, but it still sucked.So i searched the net for additional advice and came across this wheel "balancing" system, which from engineering standpoint made total sense to me (Its just like tires on vehicles). So I ordered it plus two new wheels, but had already researched plan b if this wouldn't fix my grinder. Plan B was a Grizzly grinder for $575 (cry) ( but this Grizzly is industrial and actually the cheapest out there, while all cheap brands suck).Wheel Balancing system and wheels arrived: First thing I did, is test the new wheels o the grinder, and wobble was horrible as with my old wheels.So I proceeded per the instructions to mount the new wheels to the arbors of the wheel balancing system. Mounted the screws with washer (weights) in roughly 120 degree angle and put on wheel balancer. Balanced it per instructions and mounted it to grinder. Spun by hand, wheel had zero wobble, yay. Ran the grinder, and noticed grinder had no vibration at all. But still needed dressing. Don't dress the wheel before balancing it. After dressing it, I put it back on the balancer and fine balanced it. I did the same double balancing with the second wheel. The second wheel (also a Norton 3x) was soo unbalanced, I actually had to put a second washer (weight) on one of the (3) balancing screws because it did not want to balance. But the weight of second washer fixed that. (see picture, the weights are still on one side, but its perfectly balanced)Now that both wheels were ready and mounted, the second wheel showed minor side movement, but just rotating it a little bit on grinder arbor completely fixed that.So I turned grinder on at low speed 1780rpm, zero wobble and zero vibration. Cranked it up to 3500rpm, same result. I couldn't resist to do nickel test, wow it passed.I also stopped the time how long it takes grinder to stop spinning, I had measured 1 min 35 sec with the old wheels and wobble before. Now with balanced new wheels, that time went up by over a minute to 2 min 50 sec.Conclusion: I will never again, waste my time trying to fix grinder wobble, but always get this wheel balancing system. Yes, this balancing system is the only way to get wheels run true and balanced. Safe yourself the headaches and time. Its night and day.P.S. I didn't buy a new Grizzly grinder, but it's on my list and will get one when my old one dies or I have some money to spare. No more cheap grinders, but even expensive grinders need this balancing system (some even come with one, but those cost big $).