Abstract: A planet-carrier includes first and second cylindrical discs which are arranged coaxially with respect to a common axis of rotation and which face toward one another with their respective basal surfaces. The first and second discs have several axial outer bores and the outer bores extend parallel to the axis of rotation. The outer bores of the first and second discs are aligned with one another, and have been designed to accommodate planetary bearings for supporting the planetary gears or for supporting planetary axles. Further, spacing elements, which take the form of elements separate from the first and second discs and which are in contact with the first and second discs, are provided between the first and second discs. The spacing elements have been designed to maintain a defined spacing between the first and second discs.

Abstract: A planet carrier includes a cylindrical disc-shaped body having a cylindrical outer surface and a cylindrical inner surface, the cylindrical inner surface defining a central inner bore, and a plurality of outer bores at locations radially between the inner bore and the outer surface. Each of the outer bores is configured to receive a planet bearing or to form an outer ring of a planet bearing. Also, at least one inner lubricating passage extends from the cylindrical inner surface to each of the outer bores, and/or at least one outer lubricating passage extends from the outer cylindrical surface to each of the outer bores.

Abstract: A planetary transmission includes first and second ring gears and a double planet with first and second gears rotatably disposed about a common shaft and arranged such that the gear teeth of the first gear of the double planet engage into the gear teeth of the first ring gear, and the gear teeth of the second gear of the double planet engage into the gear teeth of the second ring gear. The first gear of the double planet is preloaded in a clockwise direction such that the gear teeth of the first gear of the double planet are in contact with the gear teeth of the first ring gear, and the second gear of the double planet is preloaded in a counterclockwise direction such that the gear teeth of the second gear of the double planet are in contact with the gear teeth of the second ring gear.

Abstract: A bearing assembly for rotatably supporting a first carrier element on a second carrier element includes first and second parts, each having a through-bore, configured to rotate about a common axis, and a first fastener for attaching the first part to the first carrier element and a second fastener for attaching the second part to the second carrier element. The first and the second through-bores are aligned with each other, and the second fastener is configured to pass entirely through the first through-bore into the second through-bore and engage an interior of the second through-bore to fasten the second part to the second carrier element. The first fastener is too large to pass entirely through the first through-bore and is configured to engage an interior of the first through-bore to fasten the first part to the first carrier element.

Abstract: A bearing assembly for rotatably supporting a first carrier element on a second carrier element includes first and second parts, each having a through-bore, configured to rotate about a common axis, and a first fastener for attaching the first part to the first carrier element and a second fastener for attaching the second part to the second carrier element. The first and the second through-bores are aligned with each other, and the second fastener is configured to pass entirely through the first through-bore into the second through-bore and engage an interior of the second through-bore to fasten the second part to the second carrier element. The first fastener is too large to pass entirely through the first through-bore and is configured to engage an interior of the first through-bore to fasten the first part to the first carrier element.

Abstract: A planetary transmission includes first and second ring gears and a double planet with first and second gears rotatably disposed about a common shaft and arranged such that the gear teeth of the first gear of the double planet engage into the gear teeth of the first ring gear, and the gear teeth of the second gear of the double planet engage into the gear teeth of the second ring gear. The first gear of the double planet is preloaded in a clockwise direction such that the gear teeth of the first gear of the double planet are in contact with the gear teeth of the first ring gear, and the second gear of the double planet is preloaded in a counterclockwise direction such that the gear teeth of the second gear of the double planet are in contact with the gear teeth of the second ring gear.