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- Sep 1, 2023
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Assuming both surfaces are steel, bearing bronze (not aluminium bronze) would theoretically provide a better coefficient of friction than steel on steel or brass on steel.One of the levers, a sort of shifter fork I'm not a fan of the design. It's just metal on metal. I'm thinking their should be some kind of brass or bronze bushing or something
That said, if there's any grease or oil in the mix (which I guess would be likely in a gear box) plus any contaminants (and every gearbox in the kind of conditions we're likely to have, has those), the coefficient of friction can drop quite drastically in all cases.
Using that 'fork' style of part to shift a set of gears along a shaft is a fairly common one. If the shifting is smooth, and you can't see any obvious signs of wear, I'd not worry overly and just enjoy your new lathe.