[shinyribs]

The axle spacer inside the hub, in between the two wheel bearings, should it be steel or is ally OK?

I know guys use outer axle spacers out of ally all the time, so I'm thinking this should be fine. Just wanted some more input before I start cutting into hunks of solid stock. Thanks.

 

[MikeGyver]

I'd do Aluminum.

But I am a weight freak with little metal experience, so you get what you pay for.

 

[shinyribs]

I should ask this also since I obviously don't know what I'm doing.

The surface of the bearing this is riding against measures 3.5mm. I was thinking of making the spacer with a 5mm wall thickness. Or does it need more beef?

The axle is 20mm and I can go a total of 39mm on O.D.

 

[Racing Geek]

I usually use a 4 or 5mm wall thickness with Al. There is no reason to go so large with the OD but you do want something there to keep the spacer from moving over in the wheel when the axle isn't locating it. I've seen a few oem spacers with a ring welded or pressed onto the tube to make fitting the axle easier.

 

[shinyribs]

OK. Sound like a plan. Thanks fellas.

 

[yantosh]

just don't make it too big on the OD that you can't move it enough to knock the bearings back out, if that makes sense ?

 

[shinyribs]

Yantosh,I have an idea for that already. Thanks still.

 

[shinyribs]

I did this. I know the shaping is kinda rough and ugly. I'm working without an air compressor right now so my hand filing is "as much as needed" for unseen parts.

Thanks for the advice fellas. Much appreciated! +Rep'd all.

 

[Racing Geek]

That will work just fine. I pulled notched spacers like that out of some of the Ducati wheels I've worked with.

 

[shinyribs]

Just when I thought I had an original idea...