No.1014E 2017Special Edition on Automotive Bearing Technologies Rolling Bearing Unit Usable at High Temperature and High Speed Application for Supercharger

Author West JAPAN Technical Center, Bearing Operations Headquarters
Abstract Demands for lower fuel consumption and lower gas emissions in automobiles continue to rise, with engine downsizing being promoted as a countermeasure. The ability of superchargers is being considered to compensate the reduction in engine power output resulting from engine downsizing. To achieve the high effi ciency and improved response required for superchargers, it is beneficial to employ rolling bearings on the support structure of the supercharger rotary shaft. The below content introduces a rolling bearing unit which exhibits high performance, even in the supercharger operating conditions of high temperature and high speed.
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