Does anybody know the I.D. of the wheel bearings is ... or can someone that has there bike torn down measure them for me, Pease.

Reason is... I just found some spare bearings at work, ID. is .668 or roughly 21/32 . That's inbetween 5/8 and 11/16...

So I'm trying to figure out just how big a shaft I can use to build my own balancer... and weather or not I can use these bearings ?

My tire machine has a piece of 5/8" allthread that is used to clamp the wheel down. IIRC, it fits with some slop thru the front wheel and with plenty of slop thru the rear. I'd say you'll be fine. Of course I could be talking directly out of my ass here.

+1

Should work fine.

Eric,
You don't want to use regular bearings for a wheel balancer. You need some extra low friction bearings mounted in pairs on each side. You should then fabricate an axle with sliding cones on it to engage the regular wheel bearings in your wheel. The axle then spins on those super low friction bearings.

I wouldn't bother to build my own. There is a guy named Marc Parnes that builds the best static balancer I have ever seen and it is not overly expensive. Comes with everything you need.

www.marcparnes.com/ Check it out here.

I've got the Marc Parnes balancer, and I'll second the recommendation.


But I know Eric, he is not going to spend $100 on something he can make himself :wink:

Bingo! :D

I have the bearings, and 1/2" shaft...

Just need to make the adjustable cones, and some spacers to convert for the bigger bearing ID. ...

Thanks everyone.

I had to go before I could really finish that last post...





I also wanted to add, It's not always about the money either...

for instance I have spend about $700 so far on my PC2 mapping project, the goals are to get better gas mileage without sacrificeing any performance... and I'm not done yet...

I know I'll never make my money back on that one... and I knew that going into it.

I've built my own windshields, Heated vests, and numerous parts and gizmozs for others...

A centerstand for a bike that's not even supposed to have one, a completely custom footpeg mount system for a cruiser, so that the guy could keep his bike and not have back pains all the time.. I could go on...

it's more about the challange for me...

if I see something I think maybe I could improve...

or if someone tells me I can't do something... and I think I can.

Sometimes it's just about helping someone else.

Sometimes it's just about learning something that interesting... to me.

So you see, it's not always about the money... :wink:

Have a good night. :D

[quote="shovelstrokeed"]Eric,
[quote]You don't want to use regular bearings for a wheel balancer. You need some extra low friction bearings mounted in pairs on each side. You should then fabricate an axle with sliding cones on it to engage the regular wheel bearings in your wheel. The axle then spins on those super low friction bearings.[/quote]
You could use regular bearings for wheel balancer.Just pullout dust seals,wash out the grease with something like WD 40 and ,,Bingo !!
Your low friction,el cheapo, balancer bearings are ready.You may want to lubricate them with Wd40 from time to time.

You are on the right track... and yes that was Done yuesterday...

Although I wouldn't recomend the WD-40 as the lubricant, more so just as the protectant to keep the dry bearing from any surface rust.

If I lube them, I'll something like 3 or 5 W straight oil.

In there dry state.... I can blow on them, and they roll. :D

Just make sure it is dyno oil,synthetic may void tire warranty. :P
WD or nothing will work better then oil,no sliding takes place in them,just rolling,you don`t need lubricant . They will not spin as freely when treated with oil.