"Cold-forged steel construction with steel ball bearings. Swivel casters have double ball bearing raceways. Riveted king pin. 2 3/8in. x 3 5/8in. top plate with a bolt hole spacing of 1 3/4in. x 2 13/16in. Capacity (lbs.): 150, Wheel Size (in.): 3, Mount Height (in.): 4 1/4, Bolt Hole Spacing: 1 3/4 x 2 13/16, Top Plate: 2 3/8 x 3 5/8, Wheel Type: Swivel, Material: Polyolefin, Includes (qty.): 1"
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