Conference article

Modeling of Roller Bearings

Tobias Weiser
KUKA Robotics GmbH, Germany

Burkhard Corves
Department of Mechanism Theory and Dynamics of Machines , RWTH Aachen, Germany

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Published in: Proceedings of the 12th International Modelica Conference, Prague, Czech Republic, May 15-17, 2017

Linköping Electronic Conference Proceedings 132:83, p. 765-770

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Published: 2017-07-04

ISBN: 978-91-7685-575-1

ISSN: 1650-3686 (print), 1650-3740 (online)


Modeling of multi-body system mechanics plays a central role in the design of mechatronic systems. Roller bearings contribute stiffness and damping to the system dynamics of a mechatronic system. This article shows the stiffness modeling of selected types of roller bearings. The kinematics of deformation of a roller bearing are shown. Based on the principle of Hertz’ian contact stress the elastic forces and torques are calculated. These forces are considered and implemented in the MultiBody Library.


Bearing Stiffness, Bearing Modelling, Multi-Body Library


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