Creating Bushings for Your Grinding Wheels

I’m very frustrated with trying to find wheels wit truly cantered and 90 degree arbour holes. With that in mind how do you compensate for this the home made insert?

Thanks for your perfect description.

jooltool channel pretty cool too. Watch her do drill bits.

what is it on your neck?

Great video, thank you. I just bought my first bench grinder and was shocked at the quality control of harbor freight grinder. But this video really helped.

I know this is an old video, but dude what in the heck did you have wrapped around your neck throughout the making this video.....just had to ask.

From the machinist side of things, those last-two dressing jigs are the only ones I'd ever really even consider...because to me, there's 'glaze breaking' or 'refreshing' a wheel...and then there is true 'dressing' of a wheel. Dressing a wheel not only addresses 'grooves', 'abrasion' and 'concentricity', but it also strongly focuses on 'flatness' (perpendicularity). You get into grinding flats, and really quickly you realize how 'undressed' that most-wheels are! Whether it is a chisel or a HSS insert...even the smallest groove in that wheel becomes an eyesore (and possibly, expensive flaw) in your final work. To get around that...YOU MUST have an 'affixed diamond' that tracks to the wheel arbor! I had one for years on an old Delta 8" grinder (my DEDICATED tooling grinder, not to be confused with my 'hey, grind this angle iron on that Black and Decker unit'), that the base track was mounted to the grinder's cast-iron frame, with a T-slide which allowed for 'Y' movement and 'Z' axis (height) settings. The jig itself was a 'small wheel driven acme screw' traverse for X-axis, with a small amount of Y-axis infeed (to get the diamond closer to the wheel on each pass). Why so much concern? Because good cutting tools ground on an accurate wheel leads to EXCELLENT quality work coming out the other side!
I haven't seen a true 'machinist's' wheel dressing jig in years that was worth anything...but knowing how important it is, and how a good unit is made, if I had to now, I'd just make my own...you recover the investment the first time you use it!

Superb insight to the deeper aspects. Nice one.

what brand of grinder are you working on in the video?

Well done Ernie 👍🏻, I have the same problem from a stock grinder, have to do what you did in order to maintain well stability and prevent wobbling, i do have also a wobbling flange.. Do i have to correct it as well?! Also my grinder motor heats up very crazy, you can't touch it with your hand after 7 minutes of continous working, i replaced it with another one for that reason and the 2nd one do the same, is that normal?!! keep up the good work 👍🏻

i wrapped the shaft of my grinder with electrical tape real tight so the wheel wouldnt jump kinda rigged lol but it works

Very useful information. Thank you for sharing your insights and this video. I had never thought to use wood for such a bushing. My first inclination would be to make one out of metal.

Bless you sir!

I enjoyed this video very much I have now become a subscriber, you have a great manner and an excellent way of explaining things many thanks from the 🇬🇧 uk

Good idea to use wood. Thanks stay safe

Thank you dear friend for very good video, but I think you missed how to align sideways ?

good content. good video. thank you.

Thanks! I think those bushings are rubbish too lol. Was just wondering if they were engineered that way for a reason other than to fit various arbors, I'll definitely be making new ones for mine 👍😊👍.

Great advise.....oh wait.... I don't have a Lathe. Oh well

cool grinder,you can see it s an industrial machine...all cast in one piece...stable platform

Excellent solution to a problem I'm having right now. Thanks!

In an old Grinder Wheel I found a casted plump bushing. I always wondered how this could be done to also get it centered as good as possible ?

The correct way to tap test a grinding wheel is by using a soft faced or wooden mallet and not a file, chisel or hammer. The sound as he said should be a clear ring that lasts more than a second or two. Using a metal object on grinding wheel is bad practice because it can chip the wheel or worse case micro crack the wheel which will then casue premature failure in due course.

Great tips. Take care. Thank you.

glad about one thing, never to old to learn, thanks for grindstone tips.

If you can figure out how to make a sturdy base and bolt the grinder down you could possibly turn the disk on the grinder itself or I could anyway. Sir how do you like your respirator. I was thinking of rigging one up but am thinking it may be too much to keep it clean in the shop/ metal and wood. They look like they work very well.

A snug flange is a happy flange 🤣🤣🤣

You are ready for the next step to balance the wheel by drilling a series of holes on one half of each washer and using an arbor and you can figure out the rest. Once you get it balanced mark the washers and tape them to the wheel and then install the wheel not changing the relationship of the washers--WORKS PERFECT..

You not only don't want it up high because just imagine if you had to sharpen a bunch of tools. That is not only unsafe but it is awkward. Those are probably the ones who like to make things difficult without realizing it or having a good reason for it.

Stopped watching when you assumed I had a wood lathe.

I was taught to "ring" the wheel by tapping with wooden handle, not steel. good video

Good job.

Thank you very much sir. Very nice video learn a lot. Thanks again. Good day

is that scuba gear?

Nice video. Thanks!

You sound a bit like Kermit the Frog, great instructional video though. :)

I agree about the hight, if it is up high and anything comes off, that projectile will be aimed at the chest/ throat area.

I was looking at Baldor 6" Bench Grinders. They have approx. 14 different models! One of the descriptions says: Built for heavy duty grinding, powered by 1/3 hp Baldor PSC type motor (except 612E & 662E which are split phase)
What would be better for that type of bench grinder, a (PSC) Permanent Split Capacitor or a Split Phase motor?
Is one harder or take longer to start? Do you have to spin the wheels to get it going?

For all the comments about wood shrinking and contracting from humidity, you can always make the bushings out of nylon or Delrin.

Location of the grinder. ? High up or Low down.?
How about the direction of the spin.
Some people say.......
Have the wheel spin up, (so if bad things happen). Objects won't be sent into your (stomach way).
Please do a video on that topic. Thank you.

HELL YEAH! Goldsmith / ok over excited, best clear explanations on everything especially safety regardless of OSHA. We all know (or should) not to use a grinder on wood, plastic, etc. I admit I've used those No-No's. I didn't know about new wheel not being round, nice diamond hand dresser tool. I've read that one shouldn't use or make a DIY bushing. You sir proved that theory wrong. I have a couple of bench polishers that the diameter is small for a grinding wheel and was thinking of making my own bushing... They should put wood and metal shops back in school, but they won't because of insurance and that's another topic. I do tell kids go to Trade School not College.

Stone wheels bug me alot. Im thinking about turning my rikon into an mdf/buff wheel combo and turning an HF 4x36 into my new sharpening station.

Nice professional video but 99.5% of us don't have a lathe or any other of your 1% tools so you are talking to the 1%~!!!

Before you go to the trouble of a new bushing, drop a dial indicator on the shaft. If you're going to fix it, might as well start at the start.

This was a well informed and a well done video best I have seen in a while.I have since fashioned several spacers for a B
G 8' wire wheel.

Great video. Sure glad I watched. I wonder though why you didn't drill the walnut a bit snug for the arbor, open it up slowly with sandpaper till it custom fit the arbor, and then fit in on the arbor, and woe it down spinning, again with sandpaper until the fit was custom for the grinding wheel. It seems that this might be quicker, leave tighter bushing fits with better concentricity, and of course be easier, or even possible, for someone without a wood lathe.

Thank you a great educational and useful  video.

The reason you leave the wheel running after installing and go for a cupper is; in the first few minutes
that it's a proven fact that any faults in the wheel manufacturer or installation will show up
Good informative video