Serving to transmit swing system power in the Komatsu PC300-3 excavator series, the 207-26-31190 swing transmission pinion gear ensures torque transmission with its shaft and gear structure. Also referred to as 2072631190 in alternative search formats, this shaft-type part is installed by verifying the meshing quality of the splines and teeth within the swing reduction gear group.
When replacing heavy machinery transmission components, the gear pitch ratios and flange compatibility must be checked against the excavator operating pressures. During assembly, the condition of the bearing surfaces and keyways on the shaft should be inspected, and the reduction gear oil level must be renewed.
You can share your chassis number if you would like to confirm the compatibility of this pinion gear with part number 207-26-31190 for your machine.
