Features super synthetic rubber wheel material polyurethane plastic rubber-modified phenolic wheels of steel S-type high-temperature synthetic rubber bearing (kg) 27 ~ 50 231 ~ 190 531 ~ 408 158 ~ 1588181 ~ 2040270 ~ 45055 ~ 50260 ~ 100 Temperature -43 ~ 85-43 ~ 85-43 ~ 85-43 ~ 126-43 ~ 126-56 ~ 230-43 ~ 85-43 ~ 85 Hardness 65 (± 5) A 55 (± 5) D 65 (± 5) D - - - 75 (± 5) A 85 (± 5) A rotation flexibility Youyou Youyou Excellent Excellent Excellent Fair Poor rotation generally peaceful Youyou Youyou good floor general poor general good protection Youyou Youyou round India None None None No No No Yes Wu Nai impact Youyou Youyou excellent resistance to wear good quality is generally good Youyou Youyou Youyou Youyou excellent waterproof performance Poor Poor Youyou Youyou excellent performance against chemicals Good Excellent Excellent Excellent quality Colson poor quality control from raw materials to start. Only good quality materials before entering the production line. All casters finished products are tested good riveting, proper torque, bright appearance and rust 5-inch industrial casters, specially-made test lab can test any sample. All casters may be familiar industrial casters 6 inches, but please believe that Colson Caster does not only represent a good caster, but represents the best. Industrial casters 6 inch | Custer (certified) | industrial casters provided by Shenzhen Logistics Equipment Co., Custer. Shenzhen Custer Logistics Equipment Co. (www.szcaster.com) is an industry leader in Shenzhen, Guangdong, electronics, electrical products manufacturing equipment, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Custer led the staff warmly welcome all inquiries negotiations to create a better future for Custer.