초록 ▼

The production of a bearing surface by coating a known bearing material directly on the surface of a gear bore. A process of coating bearing materials directly onto the surface of a gear and the product thereof. The surface is preferably the inner bore surface of a planet gear. The coating methods i

The production of a bearing surface by coating a known bearing material directly on the surface of a gear bore. A process of coating bearing materials directly onto the surface of a gear and the product thereof. The surface is preferably the inner bore surface of a planet gear. The coating methods include sputtering and vapor deposition. The bearing material applied as a coating is preferably a copper-lead composition. The resultant gear having a bearing coating can be useful in any high density, high efficiency epicyclic gear train for aircraft, marine or land based power transmissions.

대표청구항 ▼

A planetary gear assembly for high speed and heavy load, comprising: a ring gear; a sun gear disposed within said ring gear; a plurality of planet gears meshing with both said ring and sun gears, each said planet gear having an inner bore surface; each of said planet gears being supported in the ass

A planetary gear assembly for high speed and heavy load, comprising: a ring gear; a sun gear disposed within said ring gear; a plurality of planet gears meshing with both said ring and sun gears, each said planet gear having an inner bore surface; each of said planet gears being supported in the assembly by a pin disposed therein, a planet carrier supporting each of said pins; and wherein a bearing material is applied directly to said inner bore surface of each of said planet gears and the bearing material forms a coating having a thickness between about 0.0016 to about 0.0040 in.