Direct replacement drivetrain assembly engineered for the E3D Hemera extruder system. Restores optimal extrusion performance when wear or damage compromises your original gearbox mechanism. Essential maintenance component for users demanding consistent print quality and reliable filament drive. Kit Includes: 1 x Hemera drive hobb assembly 1 x Hemera idler hobb assembly Please note you will need to swap out both the drive and idler assemblies and must be very careful to not get any dust/debris on the greased gears as this could affect wear performance. If your unit is working then replacing your drivetrain is not necessary, you will NOT see any better performance from your system due to the new materials used. Please find the 'How to replace your drivetrain' Guide below. Install Guide: https://e3d-online.zendesk.com/hc/en-us/articles/360017087778-Hemera-Gear-Replacement- Setup Guide (Firmware): https://e3d-online.com/pages/revo-support-hemera-xs
