The conveyor roller structure is advanced and reliable, with roller skin materials carefully selected and using high-quality welded pipe with strict tolerance requirements. The shaft material is cold-drawn round steel, the bearing housing is made of high-quality steel plate stamping, and the sealing structure employs PDC type with three sealing devices, providing superior dust and water resistance over national standards. After assembly, the roller has good strength, minimal radial跳动, low rotational resistance, light weight, low energy consumption, and a long service life, typically exceeding 30,000 hours.