Roller chains, bush chains, bolt chains, toothed chains are versatile applicable as construction elements for power transmission. They consist out of many, similar connected chain links and are mostly made out of metal. Applications range from driving, timing and load chains to conveyor chains and are versatile. These can be found on building machines, fork lifters or typical conveyor systems e.g., in painting lines in the automotive industry. Also chains with bearings can be found. These also need greases combined with the chain oil. 

Wire ropes require regular maintenance in order to not become brittle and to prevent corrosion. Areas close to water demand further special requirements, since the lubricant used theres should be biodegradable. In the case you operate in U.S. waters this is obligatory unter the VGP (vessel general permit) for some vessels.