DIN127

Why Is the Geometry of the DIN 127 Lock Washer Spring Designed This Way?

The geometry of the DIN 127 spring washer is designed for function rather than appearance. Its split, helical ring structure creates an axial offset between the two ends, allowing the washer to act as an elastic element when compressed. During tightening, the washer is partially flattened, generating spring tension that continuously applies force against the bolt or nut. This elastic force helps maintain clamping load even when vibration or external forces are present.

The split ends also increase friction at the contact surfaces, making unintentional fastener rotation more difficult. Key parameters such as thickness, curvature, and gap width are precisely controlled to ensure predictable elastic behavior. A washer that is too thin may lose its spring effect, while excessive thickness can interfere with proper tightening.

By compensating for minor material settling after assembly, the DIN 127 spring washer helps preserve preload and improves long-term joint stability.

What Materials Are Used for This DIN 127 Lock Washer Spring?

DIN 127 spring washers can be manufactured from various metallic materials, each offering distinct performance characteristics depending on application requirements. Our company specializes in the production of stamped metal components using carbon steel, stainless steel, copper, and aluminum , enabling flexible material selection for different working environments.

Carbon steel is the most commonly used material for DIN 127 spring washers. It provides high strength, good elasticity, and cost-effective performance for general industrial use. Carbon steel spring washers are often heat treated to achieve the required hardness and spring properties.

Stainless steel DIN 127 spring washers are chosen for applications where corrosion resistance is critical. They perform well in outdoor environments, humid conditions, or industries such as food processing and chemical equipment, while still maintaining reliable elastic behavior.

Copper spring washers are less common but may be used where electrical conductivity or non-magnetic properties are required. Their elastic performance is lower than steel, but they offer specific functional advantages in specialized assemblies.

Aluminum spring washers provide lightweight and corrosion-resistant solutions for low-load applications. While aluminum offers reduced strength compared to steel, it is suitable for assemblies where weight reduction is a priority.

By selecting the appropriate material, the DIN 127 spring washer can be optimized for strength, corrosion resistance, conductivity, or weight considerations.

What Specific Fastening Problems Does the DIN 127 Lock Washer Spring Solve?

The primary function of a DIN 127 spring washer is to reduce fastener loosening caused by vibration, shock, or dynamic loading . In many mechanical assemblies, external forces can cause bolts or nuts to gradually rotate loose, leading to joint failure. The elastic force generated by the spring washer counteracts this effect by maintaining continuous pressure on the fastener.

DIN 127 spring washers also help address preload loss due to material settling . After installation, mating surfaces may experience slight compression or deformation, reducing bolt tension. The spring washer compensates for this loss by expanding slightly and preserving clamping force.

Additionally, the washer increases friction at the contact interfaces , making it more difficult for the fastener to rotate unintentionally. This is especially useful in equipment subject to repeated start-stop cycles or oscillating motion.

While a DIN 127 spring washer is not a replacement for advanced locking systems in extremely high-vibration environments, it provides an effective and economical solution for many standard fastening challenges. When used correctly, it enhances joint reliability, extends service life, and reduces maintenance requirements.