Aluminum Single Groove Belt Pulley 8mm Fixed Bore 20mm Outer Diameter For 6mm PU Round Belt Two Pack Includes Hex Wrench High Strength Corrosion Resistant Mechanical Drive Pulley Precision Machined

This two-piece aluminum alloy single groove pulley set provides a precise belt drive for small motors, micro spindles, and model transmissions, using a fixed 8mm bore compatible with 6mm PU round belts.

✅ Aperture: 8mm / 0.31"
✅ Outer diameter: 20mm / 0.79"
✅ Material: Aluminum alloy
✅ Groove: Single
✅ Pack size: 2 pieces

💡 What is a belt pulley used for in small machinery? A handy device that transmits motion from a drive belt to a shaft, enabling speed and torque control.
- Handy for compact drive systems with small belts - Promotes belt alignment and reduces noise - Works with 6mm PU round belts and aluminum pulleys