Locking Washers

In the automotive and construction machinery industries, core components including engines, gearboxes, chassis suspensions and braking systems are constantly subjected to high-frequency vibration and alternating loads. By adopting the elastic wedging and tooth-locking principles, locking washers effectively prevent bolts from loosening gradually under severe vibration. They improve the operational safety of vehicles and engineering machinery and cut down maintenance frequency caused by fastening failure.

Heavy-duty equipment such as excavators, loaders, tractors and harvesters usually operates under harsh working conditions featuring heavy dust, high humidity and strong impact. With excellent impact resistance and elastic resilience, locking washers can maintain stable bolt preload even when bolts suffer lateral impact or ground settlement. This prevents loose structural connections, extends major overhaul intervals and mitigates on-site safety risks.

Inside products like washing machines, power tools, electric fans and motor housings, long-term micro-vibration will loosen ordinary screws gradually, resulting in abnormal noise and even functional breakdown. Miniature toothed locking washers (including external-tooth and internal-tooth washers) create friction by embedding tooth tips into contact surfaces to firmly lock screws, thus extending product service life and optimizing user experience.

Outdoor facilities including photovoltaic brackets, wind turbine tower bolts and high-speed rail carriage connecting joints are exposed to day-night temperature differences, strong wind loads and long-term dynamic loads. Locking washers retain elastic preload under thermal expansion and contraction as well as alternating stress, avoiding gradual bolt loosening triggered by temperature cycling and wind-induced vibration. They deliver safe and long-lasting fastening solutions for new energy power stations and rail transit systems.