Houkr GT2 Aluminum Timing Belt Idler Pulley Bearing 20&60 Teeth Width 6.35mm Born Synchronous Wheel, with a Perimeter 200mm Width 6mm Belt and a M4 Allen Wrench, for 3D Printer. Description Features:●Bushing design is much moreconvenient to install and disassemble.●Adopt surface oxidation treatment, Anti-Rust and Anti-corrosion effectively.Specifications:●Teeth: 20 & 60●Bore: 6.35 mm●Length of timing belt: 200 mm●Width of timing belt: 6 mmPacking List:●20 teeth born 6.35 mm timing pulley 1●60 teeth born 6.35 mm timing pulley 1●Length 200mm width 6mm timing belt 1●M4 allen wrench 1Note:In order to avoid the return of waste ofyour valuable time, please carefully view the product design drawings before purchase, confirm that the product is suitable for your machine or meet your needs.Why choose us:24-hour feedback excellent customer service. We are committed to creating the best quality products, so that customers get the best experience. I hope you enjoy your shopping time. Any purchase doubt please ask in the Q&A or e-mail, we will answer it as soon as possible. Features: Anti-corrosion: Surface oxidation treatment, 30% longer than the traditional life. Solid and durable: Made of aluminum alloy, high hardness and high precision. Simple structure: Easy to install, easy to assemble and disassemble. Best choice: The GT2 timing pulley is perfect for 3d printer. Applications: Widely used in milling machine, gear shaper, drilling machine, hobbing machine or other machinery transmission occasions. Product Details: Is Discontinued By Manufacturer ‏ : ‎ No Product Dimensions ‏ : ‎ 4.3 x 5.1 x 0.6 inches; 1.59 Ounces Item model number ‏ : ‎ GT2 Date First Available ‏ : ‎ November 7, 2018 Manufacturer ‏ : ‎ Houkr Best Sellers Rank: #88,095 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #53 in Mechanical Timing Pulleys #53 in Mechanical Timing Pulleys Customer Reviews: 4.1 4.1 out of 5 stars 312 ratings