One-piece shaft design ensures better concentricity of gears, reduces eccentric rotation of gears due to assembly, and ensures more uniform transmission of filaments by gears. CNC hollow POM gears, reduction gear design, high transmission ratio, and greater extrusion torque. The driven gear uses double instead of the old needle bearings, with smaller gaps and higher precision. High-strength mold steel is as the material for the feeding gear, and nano-coating is used for treatment. The overall hardness HRC value of the gear reaches 62-65; the hardness HV value reaches 1000-1200, which greatly guarantees the strength, wear resistance and resistance of the gear. Helical gear design, better meshing performance, smoother gear transmission, and more linear transmission force. The transmission overlap is large, the meshing time is long, and the contact area is large, which reduces the stress, thereby improving the bearing capacity of the gear and extending the service life of the gear. design:hollow out the excess material of the gear while ensuring the strength of the gear itself, thereby reducing the weight of the gear. Scope of application:For Kobra3 Combo Extruder Processing technology:CNC Colour:Black Material:POM+Nano-coated mold steel Package Contents: 1 * Extruder Gear 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.