GT2 smooth 16T-size idler pulley with bearing for 9 and 10 mm belts, 3 mm bore

Smooth idler pulley with an integrated bearing and a nominal 16T-equivalent size, designed to guide or tension the back of 9 and 10 mm GT2 belts on a 3 mm axle or screw.

Its compact format allows belt returns in mechanisms with limited space. The smooth surface should contact the back of the belt, while the side flanges help keep it within the running area.

Features

• Type: smooth idler pulley with bearing.
• Running surface: smooth, without teeth.
• Nominal size: 16T equivalent.
• Compatible belt widths: 9 and 10 mm.
• Bearing inner diameter: 3 mm.
• Nominal mounting: 3 mm axle or screw, usually M3.
• Body material: aluminium.
• Bearing: integrated.
• Side flanges: yes.

Compact 16T-size format

The 16T-size format provides a more compact belt path than an equivalent 20T-size pulley, but it also bends the belt around a smaller radius. Do not substitute one size for another without checking the bracket, tensioner position, belt length and available clearance.

Compatibility

It can run against the back of the wear-resistant 9 mm GT2 belt, 9 mm POWGE GT2 RF belt, wear-resistant 10 mm GT2 belt and other belts using the same profile and width.

When the toothed side of the belt is the contact surface, use the GT2 16T toothed idler for 9 and 10 mm belts.

M3 mounting can be found in RepRap projects and custom mechanisms, but 9 and 10 mm belts are wider than those used by many conventional 3D printers. Pay particular attention to the clearance between the sides of the bracket.

Do not assume compatibility with a Voron machine or another CoreXY system merely because it uses a GT2 belt. Belt width, bore diameter, pulley size and the solution specified in its bill of materials must all match.

Contents: 1 idler pulley with bearing.