Features: Brand new and high quality The integrated shafts design ensures better concentricity of the gears, reduces eccentric rotations of the gears due to assembly, and ensures that the gears transport filament more evenly. Helical gear design, better meshing performances, 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 load-bearing capacity of the gear and extending the service life of the gear. Use high strength mold steel as the material of the feeding gear. The overall hardness value of the gear reaches 62-65. The hardness reaches 1000-1200, which greatly ensures the gear Strength, wear resistance and corrosion resistance, improve the bearing capacity of the gear and extend the service life of the gear. Our extruder gear component is a perfect replacement part that exceptional performances, durability, and compatibility. Specifications: Material:Metal Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set Extruder Gear