Triangle Manufacturing makes ball bushings with 20% oil impregnated sintered iron or sintered bronze, appropriate for use in many types of mountings, linkages, and machined castings where a self-aligning bushing is required. Shaft sizes start at 0.3125" and go up to 1".  Industries using this product include agriculture, automotive, and wholesale.

Wisconsin Stamping manufactures both standard and custom bushings, including rolled bushings, spring alignment dowels, and tension bushings. The rolled bushings are available with butt, open, straight, interlocking, V-shaped, staggered, or custom seam configurations, and are commonly used as caster/wheel raceways, wear sleeves, pivot points, bearings, pins, and as guides for shaft/hole sizing. The company works with metals such as aluminum, bronze, copper, and steel.