A DK conveyor chain has a structure, and also the names of your components are stated within the drawing. These elements have functions specified below.
Pins
Pins help all of the load acting on the chain together with plates, and when the chain is engaged using the sprockets, they slide together with bushings as bearings. They can be topic to wear and especially need to have high shear strength, bending strength and put on resistance. Hardened and tempered tough steel, carburized steel, or induction-hardened steel is utilized.
Rollers
Rollers secure the chain from shocks together with the sprockets, and when the chain is engaged with all the sprockets, the rollers bend the chain smoothly and act to reduce the resistance when the chain runs on the rail. They may be demanded to have higher shock fatigue strength, collapse strength and wear resistance. Hardened and tempered difficult steel, carburized steel or induction-hardened steel is utilized.
Bushings
Bushings are found among pins and rollers and act as bearings for each the pins and rollers to not 
transmit the load acquired through the rollers straight towards the pins once the chain is engaged with all the sprockets. They are really necessary to get large shock fatigue power, collapse strength and put on resistance, and usually, carburized steel is used.
Plates
Plates are topic to repeated stress in the chain and at times to huge shocks. They can be needed to have high tensile power, and especially high shock strength and fatigue strength. Higher tensile steel is utilized for typical chains and heat-treated alloy steel for heavy-duty chains.
T-pins
T-pins avoid the outer plates from disengaging through the pins. They can be made from soft steel given that pins are commonly pressed-in the outer plates and as a result no huge force acts about the T-pins.
