Patent ID: 6422109
Filing Date: 2002-07-23
Classification: B60K,B60Y,F16H,Y10T

Abstract:
A hydrostatic transaxle comprising:an axle module comprising an axle casing, a differential and a reduction gear train connected to said differential, said gear train including an input drive, said differential and gear train disposed in said axle casing; a pair of axles connected to said differential and supported within said axle casing; a hydrostatic transmission module comprising a transmission casing separate from said axle casing and a hydraulically connected pump and motor disposed in said transmission casing, said pump having an input driving said pump and said motor having an output means drivingly connected to said reduction gear train; said hydrostatic transmission casing removably connected to said axle mechanism casing; said motor output means comprising a shaft piloted to said input drive of said reduction gear train, the piloting of said shaft and input drive constituting the alignment mechanism of said transmission and axle modules; and said axle casing including a recessed portion superimposed on a sleeve extending from said transmission casing and rotatably supporting said motor output means shaft, said sleeve and at least one of said transmission casing and said recessed portion separated by a clearance.