70 years ago Dr Ing E h Georg Schaeffler filed a patent application for the cage guided needle roller bearing that has revolutionized bearing technology until today A stroke of genius 70 years ago Dr Ing E h Georg Schaeffler revo lutionized bearing technology His idea was to en hance guidance of the needles in a needle roller bearing by means of a cage Testing began in Febru ary 1950 The results were convincing as the com ponents exhibited extremely low wear and friction The patent application was filed in September 1950 and shortly afterwards the first production con tracts were awarded With this invention my father laid the foundation for the rapid growth of our com pany The cage guided needle roller bearing is one of the most important innovations in our compa ny s history as an automotive and industrial suppli er says Georg F W Schaeffler Family Shareholder and Chairman of the Supervisory Board The de velopment of this product impressively shows what distinguishes us for the cage guided needle roll er bearing we used the full gamut of synergies to serve all relevant target markets with this innova tive product and to generate real customer value both in the automotive and the industrial sector Higher rotational speeds lower friction With his invention Georg Schaeffler eliminated ma jor disadvantages of the previously used full nee dle roller bearings The long needle rollers tended to skew which resulted in jamming In addition a By Stefan Pajung lot of friction was generated between the count er rotating needle rollers The cage guided needle roller bearing made it possible to achieve higher rotational speeds while simultaneously reducing friction and made an invaluable contribution es pecially to the development of smaller more pow erful and lower priced automobiles In mechanical engineering in construction and agricultural ma chines and in handling technology needle roller bearings were gradually gaining traction as well Continuing to be indispensable In electric mobility needle roller bearings are es sential to the functioning of numerous electrified gearboxes An example of an application is the Schaeffler e axle transmission for the Audi e tron that has been produced since 2018 In industrial applications as well the utilization of needle roller bearings has made it possible to downsize the ar eas of the joints to reduce weight and achieve more compact designs in lightweight robots for which there is an increasing demand The most recent ex ample is Schaeffler s XZU conical thrust cage nee dle roller bearing that is used as both an articulated arm bearing for lightweight robots and cobots and as a main bearing support in precision gearboxes for speed reducers in robotic joints The future will continue to see things moving by mechanical 48

Vorschau Schaeffler tomorrow 02-2020 EN Seite 48
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