It is mainly used for trolleys, flat cars, tool cars, mobile working platforms, large products, equipment mobile devices, etc. it is widely used in workshop production lines and assembly lines of industrial enterprises. Yellow iron core polyurethane PU single wheel is manufactured according to international standards. Main export destinations: the United States, Australia, South America, Southeast Asia and other parts of the world. The product is of first-class quality, moderate price and outstanding cost performance. Kaixin Caster We Are Able To Produce The Products In Line With ROHS Requirement And Have Successfully Passed The ISO9001:2015 Quality Management System Demonstration. In Order To Effectively Guarantee The Product Quality, We Equipped With Various Testing Facilities And Make Sure That Our Products Are Shipped Basing On Quality Management Standards Related To Durability Test .salt Spray Test, Impact Test And Other Tests.We can customize according to customer needs and provide brand cooperation services. Wheel Diameter (mm) Tread Width (mm) Capacity Per Wheel (kg) Model Number Bearing 100 51 400 4-4-436G Doublr ball 125 51 500 4-5-436G Doublr ball 150 51 620 4-6-436G Doublr ball 200 51 750 4-8-436G Doublr ball 150 76 1250 7-6-436G Doublr ball 200 76 1550 7-8-436G Doublr ball 250 76 1850 7-10-436G Doublr ball 300 76 2250 7-12-436G Doublr ball