GT2 Aluminium Timing Pulley 20 Teeth M4 Screw 5M Belt For RepRap 3D Printer Prusa CNC

GT2 Aluminium Timing Pulley 20 Teeth M4 Screw 5M Belt For RepRap 3D Printer Prusa CNC Specification: GT2 Pulley: Material: Aluminium Number of teeth: 20 Tooth pitch: 2mm Diameter of bore: 5mm Flange: Double Tooth width: 7mm (to fit 6mm timing belt) Grub screws: M4 GT2 Belt: Tooth pitch: 2mm Width: 6mm Belt shape: Open end Material: Fibre-reinforced rubber Length: 5M Features: T2 timing belts and compatible pulleys (GT2 pulley) are popular choices for RepRaps and RepStraps. 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. 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 12 tooth pulley Package includes: 1 x GT2 Belt 4 x GT2 Pulley 8 x Screws 1 x Wrench (As Pictures)