1,Diameter: 60-219mm 2,Idler Length:160mm-3500mm 3,Bearing Size:6204,6205, ... ,6307,6308 4,Guranteen Time:30000h Name: conveyor roller idler Feature: 1.Roller idlers Dia 60mm-219mm, length 150 ... , coal industry, power industry, cement industry, etc2.Tube: Q2353.Shaft: 45# STEEL4.Bearing: Single & Double Row Deep Groove Ball ... industry, power industry, cement industry, harbor, metallurgy. general idler