Title: Electrical vehicles' bearings: technological impact, applications and requirements

Authors: Maruti Vitthal Khaire

Addresses: TAPMI School of Business, Manipal University, 408/2, Rakshaknagar Phase 2, Kharadi, Pune – 411014, India

Abstract: The automotive ındustry is shifting to electrical vehicle technology which is governed mainly from cleaner energy and reducing dependence on fossil fuel. Bearing usage per vehicle is expected to go down with electric vehicle. Present paper discusses the impact of electric vehicles on bearing industry and new technological requirements for successful development of EV bearings. Enhanced bearing life, reliability improvement, power dense bearing, smart sensor bearings, optimised friction, noise, vibrations and harshness characteristics, special attention to lubrications and sealing are some of the key technical requirements for EV bearings. Surface engineering and application of specialty coatings have potential to increase bearing application coverage and optimise the cost of bearings for EVs. Electrical pitting and lubricant burning are going to generate the internal contamination in the bearings which may reduce the life of bearings. Bearing engineers need to adapt their know-how to new EV requirements.

Keywords: electrical vehicle bearings; reliability improved bearing; power dense bearing; smart bearing; friction optimisation in bearing.

DOI: 10.1504/IJEHV.2018.098093

International Journal of Electric and Hybrid Vehicles, 2018 Vol.10 No.4, pp.310 - 318

Received: 22 Nov 2017
Accepted: 11 Feb 2018
Published online: 04 Mar 2019 *

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