Idler pulley with 20 teeth GT2 belt

Idler pulley with teeth for 6mm GT2 belt.  Comes with 2 bearings for low friction, no noise and long life.  Used to drive the the X and Y axis of a 3D Printer.

Specifications:

• Material: Aluminium
• Flange: Double flange
• Belt Width: GT2 6mm
• Flanch diameter: 18mm
• Number of teeth: 20
• Diameter where belt runs: 12.2mm 
• Ball bearings: 2
• Bore: 3mm