All-O-Matic AWP4-B V-Groove Composite Power Wheel 4"

4" black composite wheel with sealed bearings. Includes 1/2" diameter bolt & nut, 1000 lbs capacity. This wheel is manufactured from a glass fiber reinforced polyamide (PA66-GF30) that has replaced many metallic materials due to excellent wear, mechanical and thermal properties. It is superior to any other plastic type v-groove wheel and at a great price.