Transmission for self-propelled walking lawn mowers

摘要

A transmission for self-propelled walking lawn mowers is disclosed, which comprises a casing (6) ; an input shaft (7) inserted into an opening formed in the casing; an output shaft (11) disposed perpendicular to the axis of the input shaft; and a power transmission gear mechanism for transmitting drive power from the input shaft having a drive gear to the output shaft having a driven gear, wherein bearing means (34) for supporting the input shaft comprises upper bearing means disposed adjacently above the drive gear mounted on the input shaft and lower bearing means disposed adjacently below the lower end of the input shaft.