A DK conveyor chain has a construction, and also the names of your elements are stated during the drawing. These parts have functions specified beneath.
Pins
Pins support each of the load acting on the chain together with plates, and once the chain is engaged with the sprockets, they slide together with bushings as bearings. They’re topic to put on and especially need to have substantial shear power, bending power and dress in resistance. Hardened and tempered difficult steel, carburized steel, or induction-hardened steel is utilised.
Rollers
Rollers secure the chain from shocks with all the sprockets, and once the chain is engaged using the sprockets, the rollers bend the chain smoothly and act to lessen the resistance once the chain runs on the rail. They can be demanded to get high shock fatigue power, collapse power and dress in resistance. Hardened and tempered hard steel, carburized steel or induction-hardened steel is applied.
Bushings
Bushings are found in between pins and rollers and act as bearings for each the pins and rollers to not transmit the load received from the rollers straight on the pins once the chain is engaged together with the sprockets. They can be required to possess high shock fatigue power, collapse power and put on resistance, and in general, carburized steel is utilised.
Plates
Plates are topic to repeated stress of your chain and often to substantial shocks. They’re needed to get substantial tensile strength, and particularly high shock power and fatigue strength. 
Large tensile steel is used for common chains and heat-treated alloy steel for heavy-duty chains.
T-pins
T-pins protect against the outer plates from disengaging from your pins. They are really manufactured from soft steel since pins are commonly pressed-in the outer plates and thus no large force acts on the T-pins.
