Gear pulley 16T for GT2 timing belt 6 mm, bore 5 mm (OEM)

Replacement 16-tooth gear pulley designed for GT2 timing belts with a 6 mm belt width and a 5 mm bore. This OEM pulley is intended for motion-control and belt-driven systems, providing accurate engagement with the GT2 tooth profile for reliable power transmission and positioning in 3D printers, CNC machines and robotic assemblies.

Advantages

The pulley features a 16-tooth GT2-compatible profile that ensures positive belt engagement and reduced backlash during motion. Its 5 mm bore provides a straightforward fit on commonly used shafts, and the 6 mm belt width compatibility suits standard GT2 belt sizes. The part is manufactured to standard dimensions for interchangeability with other belt drive components and supports smooth, repeatable linear and rotary motion.

Suitable for

• Belt-driven axes in 3D printers
• CNC router and mill feed mechanisms
• Robotic arms and linear actuators
• Pick-and-place and conveyor positioning systems
• Retrofit and repair of motion-control assemblies

Key specifications

• Number of teeth: 16
• Tooth profile: GT2 (timing belt compatible)
• Belt width compatibility: 6 mm
• Bore diameter: 5 mm
• Function: Power transmission and positioning for belt drives
• Application area: Linear and rotary motion systems

How to use

Mount the pulley onto a 5 mm shaft so the bore seats fully; secure it using the appropriate set screw or fastening method for your assembly (set screw, shaft collar or clamp depending on the shaft and hub design). Align the pulley with the mating idler or motor pulley so the GT2 belt runs without lateral offset and under the correct tension for the application. Verify that the belt is seated in the GT2 tooth grooves along the full pulley circumference to avoid skipping and ensure accurate positioning.

Usage recommendations

Regularly inspect pulley and belt engagement for signs of wear or debris. Maintain proper belt tension according to the machine manufacturer’s guidance to balance load transmission and bearing life. Replace the pulley if tooth wear or bore deformation is observed to preserve positioning accuracy and reduce the risk of belt slippage.