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Product Description
4 Number Pit Sheave Wheelseach 50 mm these pit winding gear wheels are designed to have a 1.7 mm to 2mm wire rod bearing, which will allow free running, there is a groove around the outside of the wheel to allow for the winding cables. The size of the wheels at 50 mm works out at 12' 6' at 4 mm scale (00 gauge). There are other sizes available also see my shop.