Magnaloy 300 HUB 1" BORE X 1/4" Keyway

Magnaloy 300 HUB 1" BORE X 1/4" Keyway. Magnaloy offers 9 models of magnesium drive couplings and 1 model of a powdered metal drive coupling. The model PM90 coupling (powdered metal) is available in bore sizes from 7/16 inch (12mm) to 1 1/8 inch (28mm) with torque rating up to 672 in-lbs. The premium line of drive couplings (magnesium) are available in bore sizes from 3/8 inch (10mm) up to 4 ¾ inch (120mm) and torque ratings up to 71763 in-lbs.