Patent ID: 7152711
Filing Date: 2006-12-26
Classification: F01M,F16D,F16H,Y10T

Abstract:
1. A spline lubrication apparatus for lubricating a spline of a pump drive, said apparatus comprising: a housing; a shaft having a first and a second end and an external surface extending between said first and second ends, said external surface defining a plurality of longitudinally extending splines such that said shaft defines a rotatable spline disposed within said housing; a gear rotatably supported within said housing, said gear including an internally splined bore for the rotatable reception therein of said rotatable spline such that said rotatable spline extends through said bore with said plurality of splines intermeshing with said internally splined bore; a bearing having a first and a second extremity, said bearing being disposed between said gear and said housing for bearingly supporting said gear for rotation within said housing; a shield disposed adjacent to one of said extremities of said bearing for diverting a portion of a flow of lubricant flowing through said bearing so that said portion of said flow of lubricant flows through said bore between said plurality of splines and said intermeshing internally splined bore for inhibiting fretting corrosion of said intermeshing splines and splined bore; said gear including; a rotatable sleeve which defines an annular collar which cooperates with said bearing; said sleeve defining a further internally splined bore; and an insert of cylindrical configuration, said insert having a cylindrical surface which defines externally extending splines which cooperate with said further internally splined bore of said sleeve, said insert defining said internally splined bore which cooperates with said plurality of splines of said rotatable spline.