Abstract: Modern tests on solid rollers from 1926 to the present are reviewed here, thus providing a foundation for empirical formulas or calculations. The effects of adhesion, elastic hysteresis, microslip, ...

Abstract: The earlier experiments on rolling friction are reviewed in this paper. It covers the period from Coulomb in 1785 to Whittemore and Petrenko in 1921, preceding the author’s work. Test data ...

Abstract: Tests made on cast-iron car wheels with machined treads, running on steel rails, are reported here. Wheel diameters ranged from 8 to 24 in., load per wheel from about 100 to 1800 lb, speed ...