Spring Plunger
A spring plunger or detent spring is a spring-loaded mechanical part used for indexing, positioning, and securing of objects, as well as for making objects possible to disassemble in normal use without losing parts. The spring force keeps the pin in position during normal use. Typically, it is a machine part consisting of a hollow cylinder with an internal compression spring acting on a Dowel, pin. The pin may, for example, be shaped as a rod with either a cylindrical or rounded tip (broadly categorized as a ''spring plunger''), or a spring-loaded ball (Ball detent, ball plunger) if the spring acts against a ball. Manufacture Spring plungers can be supplied as a complete unit that is mounted into the workpiece by screwing into threads, or in a pluggable version that is pressed into the workpiece. The sleeve is usually made of free machining steel. Alternatively, it can be made directly into the workpiece by drilling and Tapping (threading), tapping a hole, then inserting a pin ...
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