# US 2014/0194244 A1 · Axial bearing of pinion gears of a planetary gear set > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0194244 A1 - Document ID: US20140194244A1 - Status: Published application - Kind: A1 - Application number: 14/093,628 - Filed: 2013-12-02 - Published: 2014-07-10 - Earliest claimed: 2013-01-10 - Assignees: ZF Friedrichshafen AG - Applicants: ZF Friedrichshafen AG - Inventors: Tobias MILLER; Frank PAULITSCHKE; Stefan BROM - Web page: https://patentgrep.com/patent/US20140194244A1 ## CPC - F16H 57/082: {Planet carriers} - F16C 35/02: in the case of sliding-contact bearings - F16C 17/04: for axial load only - F16C 2361/61: Toothed gear systems, e.g. support of pinion shafts - F16H 2057/085: {Bearings for orbital gears} - F16H: GEARING - F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS ## Abstract An axial mounting of the planetary gearwheels of a planetary gearset having a sun gear that meshes with at least one planetary gearwheel mounted on a planetary bolt that is supported on the planetary carrier. The at least one planetary gearwheel meshes with a ring gear. At least one check-plate, which has a hole for the planetary bolt and which is positioned on one side of the planetary gearwheel between the planetary gearwheel and the planetary carrier, is associated with each planetary gearwheel. The check-plate is completely flat and is axially symmetrical relative to its longitudinal and transverse axes. The at least one check-plate has two wings that extend in the longitudinal direction, which are positioned in recesses formed in the planetary carrier, when the check-plate is in the installed condition, to secure the check-plate against rotation. The check-plate is fixed relative to the planetary carrier. ## Claims ### Claim at position 1 1-6. (canceled) ### Claim 7 An axial mounting for planetary gearwheels of a planetary gearset comprising a sun gear which meshes with at least one planetary gearwheel that is mounted on a planetary bolt supported on a planetary carrier (1), the at least one planetary gearwheel meshing with a ring gear, at least one check-plate (2) being associated with each of the planetary gearwheels of the planetary gearset, and the at least one check-plate (2) having a hole (3) for the planetary bolt and being positioned on one side of the planetary gearwheel between the planetary gearwheel and the planetary carrier (1), the at least one check-plate (2) being completely flat and being axially symmetrical relative to both longitudinal and transverse axes (4, 5) of the at least one check-plate, and the check-plate (2) having two wings (6, 7) that extend in the longitudinal direction, which are positioned in recesses (8, 9) formed in the planetary carrier (1), when the check-plate (2) is in an installed condition, so as to secure the check-plate against rotation, and the check-plate (2) being fixed relative to the planetary carrier (1). ### Claim 8 (depends on 7) The axial mounting for the planetary gearwheels of the planetary gearset according to claim 7, wherein the recesses (8, 9) for the at least one check-plate (2) have a circular cut-out geometry that is not concentric with the planetary bolt. ### Claim 9 (depends on 7) The axial mounting for the planetary gearwheels of the planetary gearset according to claim 7, wherein a lubrication pocket (10, 11) is provided on both sides of the hole (3) for the planetary bolt in the at least one check-plate (2), and the lubrication pockets (10, 11) are positioned such that cross-sections acted upon by centrifugal force are not weakened. ### Claim 10 (depends on 7) The axial mounting for the planetary gearwheels of the planetary gearset according to claim 7, wherein the at least one check-plate (2) has cut-outs (12, 13) away from its working surfaces so that a weight of the check-plate (2) and effective centrifugal forces of the check-plate are reduced. ### Claim 11 (depends on 7) The axial mounting for the planetary gearwheels of the planetary gearset according to claim 7, wherein two check-plates (2) are provided for each planetary gearwheel so that a check-plate (2) is arranged on both sides of the planetary gearwheel, in each case, between the planetary gearwheel and the planetary carrier (1). ### Claim 12 (depends on 7) The axial mounting for the planetary gearwheels of the planetary gearset according to claim 7, wherein the at least one check-plate (2) is made from one of bronze and a brass alloy. ### Claim 13 An axial mounting for planetary gearwheels of a planetary gearset comprising a sun gear, a ring gear and a planet carrier, the planetary gearwheels being supported on planetary bolts that are fixed to the planetary carrier, the planetary gearwheels meshing with the sun gear and the ring gear, each of the planetary gearwheels being associated with at least one check-plate, each of the at least one check-plate having a hole through which the planetary bolt extends, and is positioned on one side of the planetary gearwheel between the planetary gearwheel and the planetary carrier, the at least one check-plate being completely planar and defining a longitudinal axis and a transverse axis, and the at least one check-plate being axially symmetrical relative to the longitudinal and the transverse axes, and the at least one check-plate having two wings that extend along the longitudinal axis, the two wings of the at least one check-plate are positioned in recesses formed in the planetary carrier, when the check-plate is installed on the planetary carrier, to prevent rotation of the check-plate relative to the planet carrier.