Two Pack Single Groove Pulley Set With 5mm Fixed Bore And 16mm Aluminum Alloy Outer Diameter, Durable Belt Pulley For 4mm PU Round Belts, Includes Hex Wrench For Easy Mounting And Smooth Operation

Two-Pack Aluminum Single-Groove Pulleys, 5mm Bore, 16mm OD
✔️ 16mm outer dia, 5mm bore, for 4mm PU belts; includes wrench

These aluminum alloy single groove pulleys are built for compact belt drives using 4mm PU round belts. Each pulley features a fixed 5mm bore and a 16mm outer diameter, and the set arrives as a 2-pack with a hex wrench for quick mounting and smooth operation.

✅ Pack size: 2 pieces
✅ Groove: single
✅ Aperture: 5 mm bore (0.2")
✅ Outer diameter: 16 mm (0.63")
✅ Material: aluminum alloy for strength and corrosion resistance
✅ Belt compatibility: designed for 4 mm PU round belts
✅ Includes hex wrench for easy mounting

💡 What is a single groove pulley used for in small belt drive systems?

A handy belt guide component for compact drives that keeps belts aligned and reduces slip. - Motors and micro spindles - 4 mm PU round belts - Improves belt alignment and transmission efficiency ✝️