BEST CHOICE: The belt pulley is suitable for most 3D printers. Its superior performance can improve your print quality. The pulley with 60 teeth is one of the best choices for 3D printers. GOOD PERFORMANCE: The toothed belt pulleys are transmitted precisely, without slippage during work, and have a constant transmission ratio. It also has smooth transmission, has the features of memory buffer, vibration reduction, low noise, smooth transmission, etc. EASY MAINTENANCE: These timing belt pulleys have oil and moisture resistance, easy maintenance and do not require lubrication and low maintenance costs. Its teeth are short, so training is more uniform. It offers better fluidity and positioning accuracy, which improves print quality. HIGH QUALITY MATERIALS: Our 3D Printer Belt Pulleys are made of high quality aluminum alloy with precise workmanship and durability. The pulley outline also has anti-backlash function, which has better performance and smoother use. PRODUCT SPECIFICATIONS: One set includes 3 tooth pulleys The gear has 60 teeth, the inner hole of the gear is 8mm (bandwidth 6mm), the total outer diameter: 43.6mm, the outer diameter of tooth is 37.7mm, Nos Aluminum timing pulleys are safe, environmentally friendly and affordable. Product Features --- Suitable for most 3D printers, the pulley with 60 teeth or grooves is one of the best choices for 3D printer manufacturing --- Smooth transmission, with buffer, vibration reduction, low noise, smooth transmission, etc. --- Timing pulleys are oil and moisture resistant, easy to maintain, do not require lubrication and have low maintenance costs ---Made of high quality aluminum alloy, it has precise craftsmanship and durability, and also has anti-backlash function, with better performance and smoother use. --- A set including 3 toothed pulleys Combination: 3 aluminum belt pulleys Material: Aluminum Alloy Inner hole: 8mm; Bandwidth: 6mm Overall outer diameter: 43.6 mm; tooth outer diameter 37.6 mm; Color: Silver Package contents: 3 pcs x Belt Pulleys