Ricoh RB1-9184-000 is a left-side bushing for a pressure roller in printer and fax equipment. It is a small mechanical replacement part intended for the roller’s left-side mounting position.
The listing identifies the component as a pressure roller bushing and specifies the left orientation. That distinction helps identify its position within the roller assembly. The right-side counterpart has a different part number, so this item is specifically the left-side version.