Patent ID: 6957531
Filing Date: 2005-10-25
Classification: B60K,B60Y,B62D,F16H

Abstract:
1. A center section for a hydrostatic transaxle comprising a casing carrying a hydraulic pump driven by an input shaft and a hydraulic motor drivingly linked to an axle shaft, the hydraulic pump being in fluid communication with the hydraulic motor via porting formed in the center section to transfer a motive force received via the input shaft to the hydraulic motor to drive the axle shaft, wherein the center section comprises: a pump running surface on which the hydraulic pump is rotationally mounted; a motor running surface on which the hydraulic motor is rotationally mounted; a protuberance adapted to mate with a center section locator formed in the casing to establish an X-Y orientation for a central axis of the protuberance; a pair of flats adapted to mate with features formed in the casing to locate the center section rotationally; and at least one opening for a fastener that provides a Z-axis locator for the center section.