Impact Troughing Idler 1. Life time:50000H 2. Standard:ISO,DIN.JIS,etc 3.Used in:Coal mine ... , Idler shaft dia, Idler tube thk, Idler length, Idler material.Standard: DIN15207, DIN22107, ISO1537, GB10595Certificate: ISO, CEType conveyor DTII, TD75 ... 2Z and 2RS with C3 clearance.Rubber: heat vulcanized rubber. Wear resistant, anti-fireSeals: multiple labyrinth sealWelding: mixed gas shielded arc ...