Japanese Vital chain blocks are the most well-known and practical chain blocks in the world. Japanese Vital chain blocks are produced in various lifting capacities varying from 200 :g to 25 Tons. Most Vital chain blocks are used only for vertical lifting of goods and are connected to the ceiling with an eye hook. however, Vital is a producer of rail trolley too. that means they can be connected to the ceiling by trolley and move the lifted products horizontally too. Vital Chain blocks are used usually without ball bearings and including shafts as acting rollers. however, most of them have a type of housing unit for mounting.