This package includes two stainless steel rollers, four matching ball bearings and two stainless steel gears.
The matching print files are available here.
technical data:
Rollers: stainless steel (Inox knife steel), rolling surface: 40mm, diameter: 40mm
Gear wheels: stainless steel
Bearings: deep groove ball bearing 6001-2RS. Rolling bearing steel, standard DIN 625-1, sealed, tolerance: ABEC 1 / P0