Heavy Duty Nylon Zinc Alloy Sliding Glass Door Wheels 30mm 100kg Load High-quality stainless steel door rollers designed for sliding windows with adjustable features and exceptional load capacity. Product Attributes Material High carbon steel bearing + nylon + Aluminum frame Load capacity 50-500 kg per roller (depends on diameter/wall thickness) Corrosion Resistance Saltwater-resistant (316), Food-safe (304) Noise Level Low (with rubber/nylon sleeves) Lifespan 200,000+ cycles
