Yes, Belmont, and also "Rotometals" have various bearing metal alloys available. I've been mixing my own bullet casting alloys for 30-something years, and I have a Brinnell hardness tester, so I've been considering trying my hand at mixing up an alloy suitable for using in antique engines. The copper and antimony are actually mixed into the molten tin as flour-fine powder, as their melting point is considerably higher than the tin. Stir- - - -flux- - - -skim- - - -then pour the bearing while the mixture is homogenous. Parrafin or candle wax makes a good fluxing compound. It's usually a good idea to "tin" the backing shell with acid core solder to assure there's a good bond between the backing and the Babbit. The backing shell will have a series of dimples or holes drilled into it to anchor the soft metal securely.
Jerry
