... Size:according to your drawing 3.Oem 4.Iso 9001 the drive motor pulleys1) STANDARD MATERIAL ACCORDING TO TECHNICAL DRAWINGS2) ... Pulley,Bend pulley,spiral drum,Drive pulley,Discharge pulley,Motorized pulleys etc. Against the existing gear oil-cool electric ... the advantages of lower cost, the formation of a new alternative products -- "Living tooth deceleration oil-cool" electric drum. the drive motor ...