Lubrication and Lubrication Methods
MAN has been using lubricants of one type or another for at least four thousand years, and probably for a much longer period. We have learned from the inner wall of the tomb of Tehuti-Hetep, on which is a decoration illustrating the method of moving a great stone statue, that as early as 1650 B.C. lubricants were used to facilitate the movement of heavy loads. The Egyptians had available nearly every animal oil and fat, as well as at least thirteen vegetable oils, of our time, all used for food products and in the arts.
Bearings, coefficient of friction, grease, Imperial Oil, lubricant, viscosity, Friction, Grease, Load, Lubricants, Lubrication, Oil, Oils, Pressure, Temperature