In modern, high-speed ball bearings the pressure areas, which result from elastic deformations at the tall-race contacts, are appreciably curved and interfacial slip can occur at most points within the pressure areas. These slippages give rise to friction forces acting on the ball which are held in equilibrium by reactions from the races and the inertia effects of the ball's motion.nThe solution of eight, simultaneous equations involving double integrals for which closed form solutions cannot be found is required. A solution for a particular case requires the services of a high-speed computer.
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