Patent ID: 8689657
Filing Date: 2014-04-08
Classification: F16H,Y10T

Abstract:
1. A gearbox for transmitting rotational movement from a driving member to a driven member, said gearbox comprising: a housing; a pinion gear disposed inside said housing, said pinion gear including a gear portion and a tubular gear stem, said pinion gear adapted for engagement with the driving member and defining an axial bore extending therethrough, said pinion gear rotating in response to rotation of the driving member; an output member extending through said axial bore of said pinion gear and engaging therewith, said output member including an output flange disposed outside the housing that is adapted for engagement with the driven member, said output member rotating in response to rotation of said pinion gear; a clamping nut threadably coupled to said output member and abutting said pinion gear retaining said output member and said pinion gear together; first and second bearings, the first bearing disposed radially between said pinion gear and said housing, each of the first and second bearings rotatably supporting said pinion gear and said output member; and a bearing support extending through an opening in said housing, said bearing support fixed to said housing and including first and second circumferential bearing surfaces and an inwardly protruding wall portion disposed between the first circumferential bearing surface and the second circumferential bearing surface, wherein the first bearing is disposed radially between said tubular gear stem and the first circumferential bearing surface and is in contact with the gear portion of the pinion gear and a first side of the bearing support wall portion, and the second bearing is disposed radially between said tubular gear stem and the second circumferential bearing surface and is in contact with the output flange and a second side of the bearing support wall portion.