The continuous caster's roller table relies on a steel sprocket to transfer motion from the drive chain to the supporting rollers that guide hot slabs through the furnace zone. As the chain rotates, the sprocket's stepped teeth engage the links, delivering a steady torque that keeps the rollers turning at a synchronized speed. This synchronization prevents slab misalignment and reduces the risk of surface defects caused by uneven contact or sudden jerks. In the reheating furnace, the rollers must endure high temperatures and occasional scale buildup; the sprocket's hardened steel construction resists wear while maintaining precise tooth profile under thermal expansion. Operators observe smoother slab flow and fewer stoppages when the sprocket is correctly tensioned and lubricated, allowing the caster to maintain its designed throughput. Secondary mention: the same sprocket type is also found on the pinch‑roll drives of a hot‑rolling mill, where it performs an analogous function of transmitting chain power to the rolls that reduce slab thickness.