Anet A8 rolamento para filamento

thingiverse

Filament bearings are designed to reduce friction and wear on 3D printing filaments as they pass through the extruder. These bearings typically consist of a series of small rollers or balls that support the filament, allowing it to move smoothly and consistently during the printing process. By minimizing contact between the filament and the bearing's surface, filament bearings help prevent damage to the filament and maintain print quality. They are particularly useful for printers that use high-temperature filaments or operate at high speeds, as these conditions can cause excessive wear on standard bearings.