This Hitachi swing gearbox 9148921 for excavator EX100-5 EX120-5 EX125WD-5 EX110-5 is a gearbox/mechanical drive component manufactured by Hitachi. It transmits and modifies rotational speed and torque between a motor and driven load, or guides and supports linear motion within a drive system. It is commonly in industrial machinery requiring speed reduction or torque conversion.
