Energy Efficiency by Using Innovative Bearing Solutions

Based on simulation methods and calculation tools developed by the Schaeffler Group and presented in the first part of this paper, three approaches regarding increased efficiency based on rolling bearings are presented. The first approach addresses the overall bearing concept itself. It shows which bearing concept exhibits the highest potential for reducing friction within the customer’s system. The second approach focuses on reducing the friction of the rolling bearing itself. In this respect, optimization of the internal bearing geometry—as well as of the tribological conditions of relevant friction partners (e.g., roller face versus rib)—plays a key role. Examples used here are low-friction, tapered-roller and deep-groove ball bearings. The third approach facilitates higher efficiency through downsizing. For example, the load-rating capacity of the Schaeffler Group’s new ball roller bearings is enhanced by their ability to place a higher number of rolling elements into the bearing without increasing its size.