Carving Machine Transmission Pulley Belt Engraving Machine Screw Transmission 1,5M 40 mm Description: [Stability]: This integrated gearbox is designed with high precision and stable performance, which greatly increases the work efficiency. [Material]: Engraving machine transmission made of aluminum, this product ensures durability and longevity, ensuring reliable performance of your engraving machine. [Product Dimensions]: With a size of 253 x 155 mm and an external gear diameter of 33 mm or 40 mm, it fits perfectly into your machine without taking up too much space. [High Speed]: The high speed of this gearbox not only improves performance, but also reduces the time of each task. [Easy to Use]: Integrated conical gear for engraving machines, making it easy to install and operate right away. Specification: Material: Aluminum Size Chart: 25,3 cm x 15,5 cm / 9,96 inch x 6,10 inch Gear outer diameter: 3,3 cm/1,30 inch 25,3 cm x 15,5 cm / 9,96 inch x 6,10 inch Gear outer diameter: 4 cm/1,57 inch The package includes: 1 Gearbox of engraving machine