the drs wheel block system is a versatile wheel block system with optimum performance ratios for a maximum load capacity from 2.75 t to 40 t with compact dimensions. finely graded sizes (drs 112 to drs 500) ensure that th......the drs wheel block system is a versatile wheel block system with optimum performance ratios for a maximum load capacity from 2.75 t to 40 t with compact dimensions. finely graded sizes (drs 112 to drs 500) ensure that the right drs unit is selected for the corresponding application. a wide variety of travel wheel designs are available from the standard range to meet customer requirements. the housing, which is machined on all sides, can be connected to virtually any customer design. offset and angular geared motors from the demag modular system are available for the driven variant as individual or central drive units.