The GB856 and DIN 432 standards describe external tongue stop washers, which are single lug washers designed to provide retention on a shaft and prevent movement of the part in the axial direction. This washer is widely used in a variety of industrial applications due to its simple yet effective design.
Stainless Steel (304/316): Offers superior corrosion resistance and is suitable for moist or corrosive environments. The 316 grade has additional molybdenum, providing even better corrosion resistance, especially in marine applications.
Carbon Steel: Provides good strength and is the most common material for bolts. It may require additional surface treatments like galvanizing for increased corrosion resistance.
Alloy Steel: Offers enhanced strength and durability. It is often used in high-stress applications where high tensile strength is required.
Advantage:
Outer Tongue Retention: The outer tongue portion of the outer tongue stop washer is capable of snapping into a groove or other structure on the shaft to provide a strong axial retention. Ease of Installation: These washers are easy to install and can be quickly placed on the shaft and mated to the appropriate structure for quick fixing. Material Versatility: Usually made of spring steel, but materials such as stainless steel or alloy steel are also available to suit different working environments and corrosion resistance needs. Surface treatment: The surface of the washer may be galvanized, blackened, or otherwise surface treated to enhance its corrosion resistance and extend its service life.
Scope of Application
Mechanical Manufacturing: In the field of mechanical manufacturing, it is used to fix rotating or sliding parts such as gears, bearings and bushings. Automotive industry: in the engine, gearbox, chassis and other key parts of automobiles to ensure the correct positioning and fixation of parts. Electrical equipment: In electrical equipment, used to keep electrical connectors and terminals in place and prevent loosening due to vibration. Aerospace: In aerospace, to ensure the precise installation and fixing of critical components to withstand extreme operating conditions.
