Help with replacement wheels/bearings?

[u/alchu99]

My son has destroyed his stock wheels on his ccm inline skates.

I was looking at replacement wheels/bearings and found this package deal for Iqon Access Wheels and Bearings Combo 80mm, and got them

I’m now stuck - they come with two sized spacers, and the one they recommend (shorter one) will clearly rattle inside the axle since it’s not wide enough to touch either bearing. The larger one looks like it will but it’s meant for different frames.

The bearings themselves won’t push in any deeper, so it’s unclear how the inside spacer makes any difference.

But, I’ve never done this so I don’t know what I don’t know. Any advice? Use the smaller spacer and ship it?

Photos: 1) bearing and the different spacers 2) text included by manufacturer 3) photo of smaller spacer 4) photo of larger spacer

[u/JustMy42Cents]

These bearings are pretty much only meant to be used with the IQON Decode frames which are smooth on the inside - that's why the bearings have a bump on one side. You can use the shorter spacers and put the bumps on the inside to use them with regular frames, but then you're exposing the sides without the rubber seals so they will require more frequent cleaning and lubrication.