Patent ID: 9039539
Filing Date: 2015-05-26
Classification: F02M,F04C,F16D

Abstract:
1. A torque transmission arrangement comprising: a hub defining at least approximately an interior geometry of an equilateral n-sided polygon having side surfaces; a shaft including (i) a coupling portion defining a circular overall cross section, (ii) at least one driver portion rotationally fixed relative to the coupling portion and extending in a direction of one corner of the n-sided polygon, and (iii) a driver element accommodated in an aperture in the coupling portion of the shaft, wherein the side surfaces of the n-sided polygon at least approximately bear against the coupling portion of the shaft; wherein the arrangement is configured to transmit a torque between the shaft and the hub; and wherein the at least one driver portion has a shape of a spherical cap and is defined on the driver element.