Patent AT-E401187-T1: [Translated] DEVICE FOR PRODUCING PLASTIC FILMS

A calibrating basket for calibrating the extruded plastic tube has guiding bows(2) carrying guide rolls(4) for the tubular film. The guide rolls are formed by anti friction roller bearings. Each bearing has an inner ring(6) fixed to a guide bow(2) and a rotatable outer ring(7) supported via rollers(8) on the inner ring. An anti-adhesion coating covers the surface(11) of the outer ring. A gap exists between rollers on the guide bow.