In 1963 Schaeffler married Georg Schaeffler, and moved to Herzogenaurach in Franconia, which is located within Bavaria. It was through Schaeffler's marriage that she would come to work for Schaeffler Group AG. In 1996 Georg died, and she took the reins of the family Business.
Since 1996 Schaeffler Group AG has seen an increase in annual turnover and employment. By 2013 the annual turnover reached approximately 10 billion Euros, and the employment tripled to over 70,000 employees, an impressive mark for a completely privately owned company.
In 1999, Schaeffler led the acquisition of LUK, a clutch manufacturer, obtaining all of the shares of the company for Schaeffler Group AG. In 2001 she led the acquisition of FAG Kugelfischer Georg Schäfer AG Schweinfurt, with the acquisitions of FAG and INA, Schaeffler Group AG had become the second largest Producer of rolling bearings in the World. In 2009 Schaeffler Group purchased a significant share of the company Continental AG.