Features: 1) The integrated shaft design ensures better concentricity of the gears, reduces the eccentric rotation of the gears due to assembly, and ensures that the gears can transport the filament more evenly 2) CNC hollow POM gear, reduction gear design, high transmission ratio, to achieve greater extrusion torque 3) The driven gear adopts double instead of the needle bearings, with smaller clearance and higher precision 4) Hardened steel gears, nickel-plated on the surface, which improves the durability and reliability of the gears Name: Hardened steel one piece gear kit Scope of application: for extruder, for VORON 0.2 CW1 and CW2, for VORON 2.4 CW1 and CW2, for VORON Trident CW1 and CW2, or other places where this set of gears can be used. If you know mechanical design, you can also part of your extruder design. Processing technology: CNC Please note: 1) Not suitable for extruders 2) There are many products on the market that can be installed with BM gears, because there are Space in size and tolerance, you can align the filament entrance by squeezing the black big gear to move the position or adding a spacer on the shaft Material: plastic+steel colour: As Shown Package Contents: 1 x gear kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.