Spring plunger

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 a hole, then inserting a pin (or ball), spring, and finally a set screw. The spring force is tuned for the intended use. In spring plungers with a screw, the spring pressure can be adjustable within a certain working range. Different plungers may require different tools for installation, such as a hex key, socket wrench, or flathead screwdriver. Blind hole mounting variants may have tool slots on the same side as the pin. Federndes_Druckstück_2.tif|Spring plunger, cylindrical pin with rounded tip Federndes_Druckstück_3.tif|Ball plunger == Materials ==

At high temperatures or when the parts are exposed to aggressive chemicals, plastic balls or balls made of corrosion-resistant materials such as silicon nitride can be used. The threaded sleeve is then typically made of stainless steel instead of carbon steel. == Use ==

with spring-loaded control lever that can be set to different notches to adjust the angle Spring-loaded plungers have a wide range of uses. Some spring plungers are designed to be handled only when assembling or occasionally adjusting equipment. Other spring plungers are designed to be routinely manipulated (for example, to adjust the angle of a utility bench), and may have an integrated operating lever that is pushed in (push pin plungers) or a lever that is pulled out to manipulate the object (pull pin plunger). Similar principles are used in spring-loaded valves and valve stems (including safety valves), or automatic ejectors on firearms. Mechanics Spring plungers can be used, for example, to lock levers in different positions. Spring-loaded plungers with anti-twist protection enable screwless fastening. Schalthebelarretierung.tif|Spring plungers used to lock a lever Knebel1_(fcm).jpg|Square socket wrench with a spring-loaded ball plunger to hold the socket Water_level_1.png|Mechanical levels can often be adjusted with spring-loaded set screws Electronics A pogo pin is a type of electrical connector mechanism widely used in modern electronics. Compared to other electrical connectors, they have better durability and are more resistant to mechanical shock and vibration. Archery In modern archery, an archery plunger allows the arrow to be deflected as it is fired from the bow. It allows for adjusting the arrow's relative position on the arrow rest. By adjusting the stiffness and position of the plunger, the arrow can be adjusted to fly with the best possible flight, so that it travels straight. == See also ==