The Yokomo YOKSG-A4884 DCS 84T spur gear is a purpose-built replacement for DP48 drivetrain assemblies. It functions as the large reduction spur and is specified where an 84-tooth count is needed to establish the model's final drive ratio.
This part performs a mechanical role inside the gearbox, meshing with the motor pinion and other drivetrain components to influence acceleration and top-end speed characteristics. Before final assembly, ensure the spur seats correctly and that shaft alignments match the DP48 arrangement.
Installation notes: fit the spur onto the output shaft designated by your chassis, secure any retaining hardware required, and manually rotate the drivetrain to verify smooth engagement. Set the gear mesh so rotation turns freely without binding while avoiding excessive backlash that speeds wear.
Tuning and maintenance: switching to an 84T spur changes the overall gear ratio versus other sizes, so expect altered throttle response and gearing. Check teeth for nicks or wear, keep mating surfaces debris-free, and confirm the pinion specification to preserve consistent mesh.
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