Gear ratios of the eccentric roller bearing with a leading outer ring

The creation and use of promising designs of eccentric rolling bearings (ERВ) is largely hampered by the insufficient development of methods for their calculation and analysis of work features. This paper examines the solution to the problem of determining the gear ratios of an eccentric rolling bearing for the case of converting the rotational motion of the driving outer ring into the translational movement of the output inner ring connected to the executive body of the technological machine. Formulas are defined for calculating the gear ratios from the input outer ring to its driven links: rolling elements, separator and inner ring. Dependencies determining the regularities of linear displacement of the bearing output ring on the geometric parameters of the ERВ and the angle of rotation of the drive ring are obtained. The developed methods of kinematic analysis make it possible to design eccentric rolling bearings with the required kinematic parameters, to justify the scope of their application both in the form of individual units and as part of mechanical drives to implement specified laws of motion.