... 4.Shaft material: Deep drawn steel C45(DIN). Name: belt conveyor return idler Features: (1)Tube:carbon steel tube S235JR/ seamless ... , ETC.Standards :GB, ISO, CEMA, DIN, JIS, ETC.Application:Coal industry, power industry, cement industry, harbor, metallurgy.Advantages:(1)Easy ... flexibility;(2)Low friction coefficient;(3)Dust- and water-proof;(4)Grease retaining inner seal with Multi-stage Labyrinth and ...