8PCS GT2 Pulley 40Teeth Bore5mm+5M(16'5&quot;) GT2 Belt 3D Printer Parts RepRap Prusa<br /><br />GT2 timing belts and compatible pulleys(GT2 pulley) are popular choices for RepRaps and RepStraps.<br />The GT2 series of belts are designed specifically for linear motion. They use a rounded tooth profile that guarantees that the belt tooth fits smoothly and accurately in the pulley groove， so when you reverse the pulley direction， there is no room for the belt to move in the groove.<br />For best performance you want at least 6 teeth in contact with the pulley at any given time. That minimizes the chance of the belt slipping， and helps reduce backlash even further. In practice that means you want a minimum of a 12tooth pulley， and I usually try to get at least 16 teeth.   <br /><br />Features:<br />1. Durable and practical<br />2. Designed specifically for linear motion<br />3. GT2 Pulley and GT2 Belt are used together，very convenient to use<br />4. Round tooth profile guarantees that the belt tooth fits smoothly<br /><br /><br />GT2 Belt:<br />1. Length:5m/196.85''<br />2. Width:5mm/0.23''<br />3. Material:Rubber<br />4. Color:Black<br />5. Pitch:GT2<br /><br /><br />GT2 Pulley :<br />1. Diameter:16mm/0.62''<br />2. Diameter of Hole:5mm/0.19''<br />3. Height:16mm/0.62''<br />4. Teeth:40<br />5. Material:Aluminum<br />6. Color:Silver<br /><br />Note:<br />Color of Screws will be sent randomly.<br /><br />Package include:<br />1 x GT2 Belt<br />1 x Allen Key<br />8 x GT2 Pulley<br />16 x Screws<br />