Using plunger pump and motor transmission, this axle enables stepless speed change and independent left-right runner control with less wear.
A split bearing bridge separates control and power-flow channels to cut transmission weight, save space, and ease maintenance.
Main and sub-plates stabilize the center section and swash plate holders, allowing HST removal from the transmission case without disassembly.
Air intake and discharge ports circulate cooling air around a slipping torque converter and can reuse discharged heat for a battery or cab.
A port-block recess smooths cylinder-port pressure transitions at dead centers, cutting noise and vibration in axial piston pumps and motors.