2 Type: GT2 drive pulley,16 teeth, 5mm bore, 6mm wide / 2GT toothless idler pulley, 20 teeth, 5mm bore, 10mm wide. Aluminium alloy material, well-processed, anti-corrosion, anti-rust, durable in use. Widely used in 3D printer, CNC or similar projects. Ideal replacement parts for old or broken belt pulley. Please allow 1-2mm errors due to manual measurement. Available in 2 types(drive pulley and idler pulley), please choose the type you need. Type GT2 Drive Pulley/Idler Pulleys Tooth 16 Teeth/20 Teeth Bore Hole 5mm Belt Width 6mm/10mm Overall Size 14x13mm/17.7x13mm Material Aluminum Alloy Colour Silver Brand Unbranded/Generic MPN TJ4894670593988 .
eBay