For applications demanding superior strength and durability, our 1″ (608 NO) M.S. (Mild Steel) Sliding Window Roller (GT-027) is the ideal choice. Featuring a rugged mild steel body, this roller provides exceptional support and stability for heavier window sashes. The smooth orange roller ensures consistent and reliable gliding, making this component perfect for high-traffic or large sliding window systems where a robust, long-lasting solution is essential.