Rotor bearing for an electrical machine
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United States of America Patent
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Oct 17, 2017
Issued Date -
N/A
app pub date -
Jan 30, 2012
filing date -
Feb 4, 2011
priority date (Note) -
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Abstract
A disk armature generator for generating electrical energy from rotational energy of a wind power installation and comprising at least two stator components mutually offset axially along a generally horizontal rotation axis of the disk armature, and comprising, mounted therebetween so as to rotate about the rotation axis, at least one ring- or disk-shaped rotor component of the disk armature, and comprising an input-side connection for a gearbox wherein the sun gear thereof, which extends coaxially with the rotation axis of the disk armature, is coupled to at least one ring- or disk-shaped rotor component of the disk armature, wherein a rolling bearing associated with a ring- or disk-shaped rotor component of the disk armature is configured as a selected one of an angular contact ball bearing and angular contact ball bearings, having a contact angle of between 40° and 50° relative to the rotation axis, comprising a double-row angular contact ball bearing in an O arrangement.
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