Screw conveyor bearings

Supporting Earth Pressure Balance machines

Digging tunnels in unstable ground – clay, sand, silt or gravel – requires the use of an Earth Pressure Balance (EPB) tunnel boring machine.


EPB machines operate with a screw conveyor that extracts the debris filling the front shield and compensates for the pressure difference between the front shield and atmospheric pressure. Serving as the main bearing on the waste removal auger, slewing bearings from SKF are particularly suitable for screw conveyors.


SKF logo