Like standard ball bearings, stainless bearings consist of an inner ring, outer ring, rolling elements (usually balls), and a cage. However, their key differentiator is material composition — typically AISI 440C or 316 stainless steel — which provides inherent resistance to rust and staining.

When the bearing rotates, the balls roll between the inner and outer rings, creating much less friction than sliding surfaces. This rolling action allows machinery to operate more smoothly, efficiently, and with less heat generation.