Roller block of steel for high loads. Intended for transport of heavy machinery and the like. The pulley support consists of a chain with hardened steel rollers, that runs around the web on the carrier body. The whole load is taken by the rollers. The turntable is placed on the roller block to aid control during transport. The turntable is designed so that 2 roller blocks can be interconnected. The parallel bar is used to interconnect the roller blocks to a single unit that rolls parallel.