Application: Transmission drive gear for Hyosung CDU10 cash dispenser module. It transfers motor power to drive internal pick and feed mechanism for banknote separation and transportation. Resolves gear skipping, abnormal noise, multi‑pick, miss‑pick and banknote jam caused by tooth wear, cracking or deformation. Adopts high‑strength plastic material with accurate tooth profile to ensure smooth meshing with matching gears. Simple disassembly and direct replacement, critical mechanical spare part for atm machine financial equipment repair and daily maintenance.