Planetary transmission with a disk clutch or a disk brake

A planetary transmission having at least one gearset (1) comprising planetary gears (2) mounted for rotation on a planetary gear carrier (3) with one of a disk clutch and a disk brake (4) comprising an inner disk carrier (5) which, via a cylindrical portion (6) integrally connected thereto, being connected in a rotationally fixed manner to a shaft (8) that supports one of the inner disk carrier (5) and another rotating component of the planetary transmission, such that the planetary carrier (3) is radially supported for rotation on the cylindrical portion (6), and further, such that the planetary carrier (3) being axially supported by a first axial bearing (9), on the inner disk carrier (5), and a second axial bearing (10), on a sun gear (11) which meshes with the planetary gears (2) of the at least one planetary gearset (1), and with a lubrication oil supply for lubricating and cooling bearings and the one of the disk clutch and the disk brake components, such that the first axial bearing (9) comprises at least one group of rollers (15) guided in a cage (14) and a first check-disk (16) located adjacent the planetary carrier (3) and the inner disk carrier (5) and a second check-disk (17) for the at least one group of rollers (15), and such that the first check-disk (16) is a flanged disk with a radially orientated rolling section (16a) for the at least one roller group (15) of the first axial bearing (9) and, radially inside, with a cylindrical section (16b) offset relative to the rolling section (16a), the cylindrical section (16b) being arranged co-axially with the shaft (8) in a central bore (18) of the planetary carrier (3), between the central bore (18) and the cylindrical portion (6) of the inner disk carrier (5), to form a slide bearing (19) with the cylindrical portion (6).

A planetary transmission comprising:

• a planetary gearset (1) comprising a sun gear (11), a planetary carrier (3), and a plurality of planetary gears (2) that are rotatably supported on the planetary carrier (3) which is radially, rotationally supported by a cylindrical portion (6) of an inner disk carrier (5);
• one of a disk clutch and a disk brake (4) including the inner disk carrier (5), the cylindrical portion (6) of the inner disk carrier (5) being integral with the inner disk carrier (5) and being coupled to a shaft (8) in a rotationally fixed manner;
• a first bearing (9) and a second bearing (10) axially support the planetary carrier (3) therebetween, the first bearing (9) being axially supported by the inner disk carrier (5) and the second bearing (10) being axially supported by the sun gear (11) engaging the planetary gears (2) of the planetary gearset (1);
• a lubrication oil supply communicates with at least one of the first bearing (9), the second bearing (10) and components of the one of the disk clutch and the disk brake (4) for at least one of cooling and lubricating;
• the first axial bearing (9) comprises a first check-disk (16), a second check-disk (17) and a group of rollers (15) which are driven in a retainer (14);
• and
• the first check-disk (16) being located between the planetary carrier (3) and the group of rollers (15) and being a flanged disk with a radially extending rolling section (16a) on which the group of rollers (15) are driven, and a cylindrical section (16b) extending co-axially with the shaft (8) in a central bore (18), between the planetary carrier (3) and the cylindrical portion (6) of the inner disk carrier (5), such that the cylindrical section (16b) of the first check-disk (16) forms a slide bearing (19) communicating with the cylindrical portion (6) of the inner disk carrier(5).