Machine-Designers: Brass nuts on steel bolt/rod? What's the rationale?

[coredaus]

I've frequently seen old table saws, radial arm saws, and other equipment which have brass nuts on their (presumably not-stainless) steel arbor shafts.  Besides reduced likelihood of galling, are there other reasons brass might be spec'd?  Preventing wear on arbor?

[RichardJ]

You posted this question in a Mathcad forum, where you are not likely to get a reply.

Toby Metcalf‌ could you please move this tot he Creo forums.

[Tmetcalf]

will do