W / (I.D x L.O.B.) = L Example: Determine the load on a bearing of a 2-inch I.D bearing, 5 inches long and carrying a weight of 3,100 lbs W / (I.D x L.O.B.) = 3,100 / (2 x 5) = 310 Lbs/sq.in Where: W = Total weight carried by bearing, I.D = Inside diameter of bearing, L.O.B = Length of Bearing, L = Load bearing required to carry Babbitt bearing selection While not subject to precise calculations, the following considerations must also be taken into account: Continuity of service Bonding characteristics Cooling facilities Lubrication Cleanliness Maintenance schedule for the bearing in use For example, a bearing in continuous use in a harsh environment without regular maintenance will require different Babbitt and lubrication than a bearing in intermittent use in a clean, light duty environment. This so-called art is really the condensation of the experience of the technician and the experience of the bearing being rebuilt. If the bearing has performed well in use over many years, the bearing needs simply to be rebuilt to its original specification and formulation. In this case the technician's greatest concerns are: Bearing shell surface preparation Bonding characteristics of the tinning compound and the Babbitt layer and, Load bearing surface preparation and finish Eco-Babbitt Eco-Babbitt is an alloy of 90% Sn, 7% Zn, 3% Cu that is not technically a Babbitt metal. See Solder alloys for more information on Eco-Babbitt. References Bibliography . External links American inventions Engine technology Lead alloys Tin alloys fr:Régule