Solid bowl screw centrifuge

A solid bowl screw centrifuge, comprising:

• a housing;
• a rotatable drum having an axis of rotation, wherein the rotatable drum comprises a cylindrical portion having a length L1 and a conical portion having a length L2, and wherein a sum of lengths L1 and L2 is equal to a length LT of the rotatable drum;
• a screw arranged in the rotatable drum, wherein the screw is rotatable relative to the rotatable drum at a differential speed;
• a rotor rotatably mounted in the housing, wherein the rotor is formed by the rotatable drum and the screw;
• a liquid discharge arranged in the cylindrical portion of the rotatable drum;
• a solids discharge arranged in the conical portion of the rotatable drum;
• at least two drum bearings arranged to support the rotatable drum in the housing, wherein the at least two drum bearings are spaced at a distance LL;
• and
• at least one screw bearing arranged to support the screw in the drum,
• wherein the distance LL between the at least two drum bearings is less than the length LT of the rotatable drum, and
• wherein one of the at least two drum bearings is positioned radially outside on the conical portion of the rotatable drum,
• wherein the one of the at least two drum bearings has a smaller inner diameter than the cylindrical portion of the rotatable drum.