Caster manufacturers, Custer logistics equipment (certified), casters are provided by Shenzhen Logistics Equipment Co. Custer. Shenzhen Custer Logistics Equipment Co. (www.szcaster.com) is specialized in "casters, forklifts, aluminum ladders, aerial platform" of the enterprise, the company of "honesty, hard service" concept, to provide you with the most quality products and services. Welcome to inquire! Contact: Iso. 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 choice for poor bearing one, Patel spiritual bearings: Special Er Ling is a special plastic casters prices, local casters for wet and corrosive Guinness, general rotation flexibility, greater resistance. 2, roller bearings: After heat treatment roller bearings can carry heavier loads caster manufacturer, rotation flexibility in general. 3, ball: made of high quality bearing steel ball bearings, can carry heavier loads, for applications that require flexible rotation and quiet occasion. 4, the plane bearing: suitable for high and ultra-high load and high speed applications.