Our Stamped Steel Pipe Hangers are available in 2-3/8", 3-1/2", 4-1/2" and 5" OD. They have a .51 ID oil light bearing and axle bolt with lock tight nut and accepts a 12mm bolt. The stamped steel has more ability to bend so they will not snap when torqued too tightly. The lower half of the swing hanger body has a figure eight pendulum with a sintered bronze bearing incorporated into it, to reduce wear. The bronze is impregnated with oil so the bearings do not have to be oiled. The pendulum is 1 wide and is a completely closed figure eight so that the connecting S-hook or shackle can not be dislodged from the hanger.