Patent ID: 9400014
Filing Date: 2016-07-26
CPC Classification: E02F,F16C

Claim Text:
1. A rotating assembly for a machine, the rotating assembly comprising: an upper rail coupled to a first support structure of the machine; a lower rail coupled to a second support structure of the machine; and a plurality of rollers disposed between the upper rail and the lower rail, wherein the plurality of rollers is configured to facilitate relative rotation between the upper rail and the lower rail about a rotation axis; wherein the upper rail comprises a plurality of upper rail segments, each of the plurality of upper rail segments comprises an upper surface facing the first support structure, and a lower surface facing one or more of the plurality of rollers; and wherein the lower surface of at least one of the plurality of upper rail segments has an arcuate shape in a circumferential cross section which varies the thickness between upper surface and lower surface along a circumferential direction with respect to the rotation axis.