Pulley Idler GT2 20 Teeth ID 3mm

Description This pulley has a toothed outer diameter compatible with a GT2 timing belt. It gives you that extra level of precision that makes your prints just that little bit smoother. Toothed idlers can be used in place of bearings to prevent damage to the teeth of the belt by allowing it to glide gently around the curve. Idlers are purposely designed, with correct flanges and clearance to ensure a belt retains a constant tension throughout its entire stroke in a way bearings could never match. Specifications:  Size: 2GT Bore: 3mm Teeth: 20 teeth Width of Gear: 7mm Belt Width: 6mm Usage: For 3d printer Material: Aluminum Packing List: 1 x Idler 2GT 20 Teeth