Toothed wheel unit with external toothing

Abstract

The invention relates to a toothed wheel unit (12) with external toothing, preferably for heavy machinery gears and/or rapidly moving gears like turbomachinery gears, comprising a toothing carrier (22) with an external toothing (20a,20b) provided on a circumferential surface and a bearing journal (32a,32b) or connection portion in at least one axial end region (24a,24b) of the toothing carrier (22), joined with the toothing carrier. The toothing carrier (22) is either provided with a toothing carrier casing (22) whose inner diameter (d1) is larger than the diameter (d2) of the bearing journal (32a,32b) or the connection portion or/and with a plurality of toothing carrier plates (248a,248b) following each other in axial direction and joined with each other.

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