tainless Steel or 4140

[old hack]

I need to make some sleeves that press fit onto aluminium spacers, the sleeves give a hard wearing surface to the spacers where a oil seal runs.
I have made these in the past out of 4140, but it has been suggested I use Stainless Steel.
But I think 4140 has a higher hardness, and there for better wear properties.

any thoughts

[chrsbrbnk]

I have more trouble with stainless galling up 4140 can go to about 40-45 RC with out getting too weird but has more of a tendency to crack if harder or you could go a 400 seris stainlees and heat treat

[SGW]

What was the rationale for using stainless steel? Unless you need to solve a corrosion problem of some kind, I don't see the point.

[old hack]

thanx for the feedback,
the spacers are rear axle spacers on an enduro bike.
the grit etc gets under the lip of the seal and gouges the aluminium, hence the need for a wear ring. they are approx 30mm diameter.

and yes I'm think the Stainless was suggested for corrosion resistance