1、Round belt drive is compressed by the belt and the flute of the round pulley to generate friction, which has good elasticity. 2、Relieve shock and vibration during operation, smoothly move, low noise, and protect the machine and motor. 3、Round belt transmission is particularly useful in some low‑speed and small‑power transmission applications. 4、Different fronts and backs, multiple options, flexible use, to prevent problems such as movement, slippage or looseness. 5、Center hole is 32mm, and there are 2 different models to choose from to meet different needs. Item Type: Driven Pulley Material: Aluminum Alloy Model Size: Model 5400-0032-0064 5400-0032-0096 Pitch Circle Diameter PD 64mm 96mm Aperture: Approx. 32mm / 1.3in 1 x Driven Pulley