Coiled Spring Pin

Because the slot is pressed closed when the pins are inserted they don t flex after installation.

Coiled spring pin. Compared to other pins their square ends concentric chamfers and lower insertion forces make them ideal for automated assembly systems. They re manufactured to an oversize dimension so that when the pin is inserted into a hole radial forces are exerted that hold the spring pin in place. Slotted spring pin assortments. Coiled spring pins have an internal coil that remains more dynamic after installation which helps the fasteners absorb shock from the assembly and provides more flexibility than a slotted style.

Coiled spring pins have a body diameter larger than the recommended hole diameter and chamfers on both ends to facilitate starting the pin into the hole the spring action of the pin allows it to compress as it assumes. Otherwise known as spiral pins coil pins roll pins or simply spring pins coiled spring pins are available in both inch and metric sizes in a variety of materials and finishes from 031 1 32 0 8mm in. Since that time the coiled spring pin has proven to be the most versatile spring pin in the industry. Spirol invented the coiled spring pin and its production technology in 1948.

Press fit spring loaded guide pins. A coiled spring pin also known as a spiral pin is a self retaining engineered fastener manufactured by roll forming metal strip into a spiral cross section of 2 1 4 coils. The features of the coiled spring pin make it the industry standard for applications where product quality and total manufacturing cost. Spring loaded pins may include a quick release mechanism to make installation and disassembly easier.

Slotted coiled spring or hollow pins are economical universally used shear type fasteners that are self locking. Slotted spring pins are also known as roll tension split and expansion pins. They also have higher dynamic load capacities and accommodate wider hole tolerances. Coiled spring pins are flexible after installation so they absorb shock and vibration better than slotted spring pins.

The coiled pin with the optimal combination of strength flexibility and diameter will result in the prolonged useful life of an assembly. Spirol s coiled pin was designed with assembly in mind. For higher load applications where vibration and shocks are a problem use a coiled spring pin. Spring pins are also easy to insert and remove.

They evenly distribute stress across the pin. More than fasteners spirol coiled pins are shock absorbing elements that are integral active components of a total assembly.