The wheels on these all-steel casters are 8 inches tall & 2 inches wide. They have roller bearings with heavy sleeves in the wheels & ball bearings in the swivel portion & have grease zerks in both areas. The arms are designed for increased lateral stability is indicated by the creases & bends in them. The swivel pivot is much heavier than on the ones made off-shore (actually more robust all around).
These wheels don't show any signs of ever being mounted; just have chipping in the paint from being moved around. Great for a heavy duty cart, car rotisserie, mobile hoist or similar items. Would look cool for a farmhouse or steampunk designed project think mobile heavy-duty ice chest!