







Discover the world of elastic pins, where innovation meets functionality:
Structural features: The elastic pin, also famed as a spring pin, is ingeniously crafted as a headless, hollow cylindrical entity. It boasts axial grooves and skillfully chamfered ends at both extremities, embodying a masterpiece of engineering precision.
Working principle: With a diameter slightly surpassing that of the assembly hole, the elastic pin promises a secure fit as it undergoes elastic deformation during installation. Compressed from the inner wall of the assembly hole, it contracts inwardly while engaging with the hole's inner wall to ensure a steadfast, tight embrace.
Material selection: A variety of top-tier materials elevate our pins, including premium spring steel 50Mn, 65Mn, stainless steel grades 304 and 201, resilient 60Si2MnA, durable carbon and alloy steels, as well as copper, showcasing an array of choices tailored for diverse applications.
• Classification method
According to appearance, these versatile pins are classified into straight groove, rolled, and toothed elastic cylindrical pins, each offering unique benefits.
According to shear load, the straight groove and toothed elastic cylindrical pins are distinguished into light and heavy categories, while rolled elastic pins are segmented into light, standard, and robust heavy-duty types.
• Main role
Connection fixation: The elastic deformation-generated pressure creates friction with the hole wall, effectively anchoring the parts and curbing any relative axial movement.
Bearing axial load: Under axial load, these pins exhibit elastic deformation, adeptly absorbing and redistributing part of the load across the surface of the connected components, ensuring stability.
Absorption of vibration and impact: Thanks to the material's inherent elasticity, it adeptly deforms under external vibrations or impacts, significantly mitigating the potential impact on connected parts.
Simplified assembly: With a far simpler structure than traditional bolts and screws, these pins streamline the assembly process, significantly enhancing efficiency and ease of installation.
Easy to disassemble: The minimal pressure exerted during assembly ensures straightforward disassembly, minimizing the risk of damage to components and facilitating effortless maintenance.