ABSTRACT
The original name for tin-antimony-copper (Sn-Sb-Cu) white alloys used for machinery bearings; the term now applies to almost any white bearing alloy with either tin or lead base. The alloy consists of 88.9% tin, 7.4% antimony, and 3.7% copper. This alloy melts at 239°C. It has a Brinell hardness of 35 at 21°C and 15 at 100°C. As a general-utility-bearing metal, the original alloy has never been improved greatly, and makers frequently designate the tin-base alloys close to this composition as genuine babbitt.
