... ,JIS 2.Size:89mm*6204 3.Material:Carbon steel 4.Used:Coal mine,power,industry Our company is a specialized factory of ... 50000 hours of working life.Product DepictIt is the part used to support belt and material loaded on the belt conveyor ... 63.5mm-219mm, length 150-3500mm, which are used in the steel industry,harbor, coal industry, power industry, cement industry, etc2.Shaft ...