Coatings reduce friction in bearings by creating a low-friction, wear-resistant surface that minimizes direct metal-to-metal contact. For example, Armoloy Thin Dense Chrome (TDC) features a micronodular surface structure that can retain trace lubricants or function effectively in dry or low-lube conditions.
This reduces frictional drag, prevents galling, and minimizes heat buildup during operation — all of which contribute to smoother performance and longer service life. In high-load or high-speed applications, coatings also protect against abrasion, fretting, and lubricant breakdown, improving bearing efficiency and reliability.