Results are presented of tests conducted on a 150 mm pad thrust bearing over the speed range 1000–4000 rev/min. Heat transfer to pads and runner is estimated from pad and runner temperatures. Pad heat transfer proved to be of minor importance. The runner is shown to approximate to an infinite heat sink. Heat transfer to the runner is dominated by the film thermal resistance and ranged from 0.1 to 0.8 of film energy dissipation. The dependence of film convective heat transport upon the film Peclet number is demonstrated and an improved method for the prediction of bearing performance is outlined.
Get full access to this article
View all access options for this article.
References
1.
PinkusO.WilcockD. J.Thermal effects in fluid film bearings. Proc. 6th Leeds-Lyon Symp. on Trib., 1979, 3–23.
2.
NealP. B.Some factors influencing the operating temperature of pad thrust bearings. ibid, 137–142.
3.
NealP. B.Analysis of the taper-land bearing pad. J. Mech. Engng. Sci., 1970, 12, 73–84.
4.
RaimondiA. A.The influence of longitudinal and transverse profile on the load capacity of pivoted pad bearings, Trans. ASLE, 1960, 3, 265–276.
5.
VohrJ. H.Prediction of operating temperature of thrust bearings. J. Lub. Tech., 1981, 103, 97–106.
6.
HallP. W.NealP. B.The influence of film temperature boundary conditions on the performance of fluid film bearings. Int. J. Mech. Sci., 1975, 17, 565–572.
7.
EttlesC. M. M.Transient thermo-elastic effects in fluid film bearings. Paper presented at the Thermomechanical Effects Workshop, Battelle Laboratories, Ohio, USA, June 1981.
8.
CarslawH. S.JaegerJ. C.Conduction of heat in solids, 2nd edition, Oxford University Press, London, 1959.
