Patent ID: 7536930
Filing Date: 2009-05-26
Classification: B62D,F16H,Y10T

Abstract:
1. A reduction gear unit, comprising: a pinion shaft and a main gear shaft that are disposed in parallel to each other; a pinion mounted on the pinion shaft and a main gear mounted on the main gear shaft that are arranged to mesh with each other, so as to transmit a rotation of the pinion shaft to the main gear shaft; a housing that encloses the pinion and the main gear, comprising: wherein the housing is oriented such that the main gear shaft is inclined with respect to a horizontal surface and such that the first housing region is disposed lower than the second housing region; and wherein an oil and fat lubricant is contained in a lower part of the first housing region, and wherein the first housing region is partially filled with the oil and fat lubricant to a predetermined fill level and a part of a meshing portion of the pinion and the main gear is immersed in the resin lubricant located below the predetermined fill level.