DC Rollers All Itoh Denki DC rollers are equipped with a brushless 24V DC motor nestled inside each roller’s tube. PM320HS Waterproof, 1.26″ (32.0mm) diameter motorized conveyor roller. PM486FE Our most popular 1.91″ (48.6mm) diameter motorized conveyor roller. PM486FH 12 pin connector, 1.91″ (48.6mm) diameter motorized conveyor roller. PM486FP Our torquiest 1.91″ (48.6mm) diameter motorized conveyor roller. PM486FS The original 1.91″ (48.6mm) diameter motorized conveyor roller. PM486XE/XP Our internalized drive card, 1.91″ (48.6mm) diameter motorized conveyor rollers. PM570FE 2.24″ (57.0mm) diameter motorized conveyor roller. PM570KT Our Intralox belt compatible 2.24″ (57.0mm) diameter motorized conveyor roller. PM605FE 2.38″ (60.5mm) diameter motorized conveyor roller. PM635FS Our 2.50″ (63.5mm) diameter motorized conveyor roller capable of moving large pallets. PM635KE Our 10 amp 2.50″ (63.5mm) diameter motorized conveyor roller capable of moving large pallets. PM635KT Our 7 amp 2.50″ (63.5mm) diameter motorized conveyor roller capable of moving large pallets.