| 摘要 |
<p>The invention relates to a gear wheel (10; 20) comprising: a hub (15; 25) with respective first and second axial ends and intended to be arranged round an axis of rotation, at least one of which first and second axial ends of the hub has integral coupling devices (16; 26) intended to lock the gear wheel (10; 20) rotationally in relation to the gear wheel hub of an adjacent gear wheel; a circular gear ring (11; 21) with respective first and second axial ends and an outer periphery which is provided with a toothed rim (12; 22); and at least one intermediate wall (14; 24) which links the gear ring (11; 21) and the hub (15; 25) in such a way that the hub (15; 25) is fixed at substantially the centre of the gear ring (11; 21); which gear ring (11; 21) and hub (15, 25) are two separate parts joined together by an fastening connection (17; 27) to form a gear wheel (10; 20). The gear wheel according to the invention is characterised in that the axial ends of the hub (15; 25) end at or within the plane which is defined by the axial ends of the gear ring (11; 21) transversely in relation to the longitudinal shaft round which the gear wheel is intended to be arranged.</p> |
