Static structural behaviour of wire bearings: comparison with conventional bearings and study of design and operational parameters
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Date
2018-10-28Author
Heras Miguel, Iker
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Mechanism and Machine Theory 132 : 98-107 (2019)
Abstract
In wire bearings the rolling process occurs on raceways machined on steel wires, and the rings are
made of light materials such as aluminium. This particular architecture provides both weight and
inertia savings, but also significantly different behaviour with respect to conventional bearings. For
this reason, specific design and analysis tools must be developed; as a first step, this work uses Finite
Element models to study the influence of different parameters on the static structural response of
wire bearings. Thus, bearing stiffness, load capacity and contact status (contact force and angle, and
ellipse truncation) have been evaluated for several combinations of conformity, friction coefficient
and boundary conditions. The results have been compared with an equivalent conventional bearing,
shedding light on the main structural features of wire bearings.