Does anyone know if there is a way to enlarge a hole from 5/8" to 1" on a grinding wheel? I have a brand new Norton sg wheel that has a
5/8" hole I would like to use the oneway balancer on it however it has to be 1" Sure hate to throw this wheel out as it costs about $100 Thanks for any help anyone can providedon't enlarge the hole, you risk fracturing the wheel and that's dangerous. Why do you think you need to use the balancer? is the wheel defective in some way? if it is not, maybe you should consider using it without the balancer. You will notice that professional machine shops, etc DO NOT use these balancers - so that suggests to me that they are one of those things sold to folks who don't really need them
I have used a cheap (or worn out) diamond impregnated saw blade to shape a grindstone - you can hold it against the face to get it round, and if there is any wobble, you can trim the sides - at which point the wheel is running true and at least in my experience, without vibration.
If you want to throw away the wheel, I'm sure that there are folks on this NG and others that will be pleased to take it from you
** Posted fromWhat Bill said. I've been a machinist for 38 yrs. You balance a wheel by making it run true. Faces and OD. Not adding a "balancer". Never thought of using an old diamond saw blade to true-up a wheel, might be slow, but should work good. Thanks Bill.
Ok - listen please.
I am into metal mostly, have turned a lot of wood in my life and have lots of wood tools to my large metal shop.
I have two surface grinders. The grindstones turn at 20-30,000 RPM. FAST. I have to ring the stone before mounting. Because a tiny flaw is magnified!
Lets say you some how get the hole cut out. Now it has to be balanced. Then it has to be trued on face and on edge. The hole may not be co-linear with the other hole.
A wheel explodes with such force it can cut off arms and legs.
A friend of mine at a local large industry (tree harvest) JD house was grinding something on a large industrial stone. It exploded and by the grace of God the stone rotated and glanced off his arm. If the large chunk didn't rotate, the arm would have been just taken off.
So on that wheel - use it as is. It is cheaper to buy a new grinder for it and a new stone for the balancer.
I'm a little nervous on the need of a balancer.
Stones can be faced - trued up - with a diamond in a rod. These are not expensive and clean up a wheel nicely.
Martin
Martin H. Eastburn @ home at Lions' Lair with our computer lionslair at consolidated dot net TSRA, Endowed; NRA LOH & Patron Member, Golden Eagle, Patriot's Medal. NRA Second Amendment Task Force Charter Founder IHMSA and NRA Metallic Silhouette maker & member.
cosmoman3 wrote:
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