Spring Pin, also known as Roll Pin, Tension Pin, and Self-Lock Pin, is inserted into holes with smaller diameters than the pins themselves, allowing them to compress and create a snug fit. Once installed, the pins exert a retaining force against the hole’s walls, ensuring stability. Spring Pins can retain a shaft as a journal in a plain bearing, serve as a key to fasten one shaft to another, or precisely join flat faces of mating parts through symmetric hole locations.
