Single packaging contains one ball roller bearing, delivering a complete, ready-to-install unit. This packaging method simplifies purchasing for customers needing individual replacement parts or specific quantities. Durable material construction: the main ball is made from robust bearing steel and the housing is made from durable carbon steel, designed for tough use in industrial environments. High load capacity: capable of carrying up to 400 kg, with a maximum load rating of 450 kg. Suitable for applications that require handling heavy loads without sacrificing mobility. Typical applications: - Heavy duty material handling and transfer lines to move large items smoothly - Equipment fixtures and automation cells requiring robust, reliable support - Industrial conveyors and pallet handling systems that bear high weights while maintaining smooth operation Notes: designed for industrial use with a simple, install-ready form factor.