Crankshaft assembly with polygon crank pin
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United States of America Patent
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-
Feb 14, 2017
Grant Date -
Sep 15, 2016
app pub date -
Mar 10, 2015
filing date -
Mar 10, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A crankshaft assembly for a motorcycle includes a first flywheel half with a polygonal-shaped aperture therein and a second flywheel half with a polygonal-shaped aperture therein. The first and second flywheel halves are interconnected by press-fitting opposing first and second polygonal shaped end portions of a crank pin into respective polygonal-shaped apertures of the first and second flywheel half. A bearing is positioned at least partially on a surface of a cylindrical central portion of the crank pin and a connecting rod has an aperture at least partially receiving the bearing.
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