Why Tab Washers Beat Other Locking Solutions in Gearboxes

In the battle against loosening fasteners, you have several options—spring washers, lock nuts, chemical thread lockers. Yet, tab washers remain a preferred choice in many gearbox applications. Their mechanical locking design ensures zero rotation once the tab is bent, making them more reliable than friction-based solutions.

Leading shim washer manufacturers understand that a tab washer not only locks the fastener but also acts as a barrier against wear on mating surfaces. When supplied by a reputable washer manufacturer, these washers meet tight dimensional tolerances, ensuring proper fit and function. This makes them ideal for high-vibration environments like railways, heavy machinery, and aerospace gearboxes, where failure simply isn’t an option.