OKI Feed Roller 41766501 is a paper-feed replacement part for compatible OKI printers. The parts manual identifies it as a Roller-Feed fitted in the printer’s Hopping-Unit, where it participates in feeding paper from the tray.
The distributor lists supported models including the C910, C9200, C9300, C9400, C9500, C9600, C9650, C9800 and C9850. This makes the roller relevant for servicing listed printers when their feed roller needs replacement.