Patent ID: 8517845
Filing Date: 2013-08-27
Classification: F16F,Y10T

Abstract:
1. A torsional vibration damper comprising: a hub including a circular side wall having a central hole configured to receive a crankshaft and a cylindrical portion extending from an outer end of the circular side wall and substantially perpendicular to the circular side wall, wherein the circular side wall and the cylindrical portion define a circular recess opened on one side and located inside the hub; a connecting element extending from the hub; a disc extending from the connecting element; a rim being bent and extending from a periphery of the disc; a rubber layer attached on an outer surface of the rim; and one of a ring member or a pulley located on an outer surface of the rubber layer, wherein the connecting element is configured to connect the hub and the disc, wherein an inner surface of the connecting element defines a polygonal recess located adjacent to the circular recess and an in-circle of the polygonal recess is larger than the hub; and wherein the polygonal recess is configured to be used by a grip mechanism of a robot to install the torsional vibration damper to the crankshaft.