Contact Pressure Analysis of Rolling Bearing Raceways with Geometrical Singularities

Paper #:
  • 2010-36-0116

Published:
  • 2010-10-06
Citation:
de Andrade Gasparoti, A. and Nonato, F., "Contact Pressure Analysis of Rolling Bearing Raceways with Geometrical Singularities," SAE Technical Paper 2010-36-0116, 2010, https://doi.org/10.4271/2010-36-0116.
Pages:
11
Abstract:
Sustainability is the focus of most engineering projects nowadays. The challenge of taking the efficiency to its maximum, in order to reduce the CO₂ emission, became so hard that even a minor innovation is a relevant step. Among the efficiency villains in automotive branch it is possible to quote the mechanical friction losses. One of the main factors concerning to these sort of losses is the contact pressure in rolling bearings. This pressure is highly influenced by singularities on raceways. Different geometry profiles can be a friction source, affecting the usage and leading to a wasteful exploitation. This paper aims to scrutinize the influence that different abnormalities on raceways has on the contact pressure of high speed and low load axial ball bearings. The study will be based on numerical simulations on a contact calculation software. The contact pressure will be evaluated around the edges of dented, bulged, grooved and ridged profiles.
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