A plastic pulley ideal for model making as well as general use. The pulley is a tight friction fit on a 4mm diameter shaft and suits our 2.5mm diameter pulley belts or the 4mm diameter if you prefer.
Available in 9 different overall diameters of 10, 12, 18, 20, 25, 30, 40, 50 & 60mm. The core diameter (that the belt sits on) is about 3.5mm less than the overall diameter. Each pulley is 6mm wide.
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