The package contains: 1 x GT2 pulley Ø 5mm 20 teeth H6 double head
GT2 toothed pulley, with teeth pitch 2 mm, suitable for use with GT2 toothed belt in neoprene reinforced with nylon or polyurethane reinforced with steel to be chosen according to the type of end use. Made entirely of aluminum. The diameter of the internal hole is 5 mm. Born with a double head with double flange, the height between both flanges is about 6 mm, so it is recommended the use of a belt 6 mm high or less.
For an optimal performance ideally you should always have at least 6 teeth in grip on the belt. Having 20 teeth this pulley reduces the recoil due to acceleration and changes of direction ensuring a good resolution in case of use on automation systems such as 3D printers and small CNC systems.
It is fixed with steel headless screws (grains) included in the package.