Machine for cross cutting a material web

A machine for cross cutting a material web, the machine comprising:

• a main frame part unitarily formed by casting with a pair of transversely spaced main sides and with at least one main traverse extending transversely between the main sides, each of the main sides being unitarily formed by casting with a generally vertical seat and on the seat with an outwardly open and generally semicylindrical half bearing race, the seat having on each main side a respective horizontally extending step;
• a secondary frame part unitarily formed by casting with a pair of transversely spaced secondary sides and with at least one secondary traverse extending transversely between the secondary sides, each side of the secondary frame part being unitarily formed by casting with an outwardly open and generally semicylindrical half bearing race;
• fasteners securing the frame parts together with the secondary sides pressed against the steps of the seats of the main sides, the traverses extending parallel to each other, and each of the half bearing races of the secondary part fitting against and forming with a respective one of the half bearing races of the main part a respective full bearing race;
• respective bearings set in the full bearing races;
• and
• two blade drums rotatable about respective transversely extending drum axes and having ends journaled in the bearings.