Sterile or aseptic filling is unavoidable when bottling beverages. The PET bottle is at the heart of the global beverage industry known as "the ideal packaging". Wherever there may be direct contact between the beverage and the filling technology, special attention must therefore be paid. The roller bearings used in the filling/capping head must therefore comply with hygiene requirements. Here it is particularly important: The bearings must be CIP/SIP compatible! Conventional steel bearings cannot do this: The lubricants will contaminate the product because grease would be "washed out". Even more critical, the so generated cavities below the seals will allow germs to grow - this is hygenically not acceptable.
This is where our hybrid bearings (rings made of high nitrogen steel, balls made of silicon nitride) come into play: Our bearings are open and therefore hygienically set to "zero" after every CIP/SIP process. The combination of our special steel/ceramic makes operation WITHOUT grease possible. In addition to these hygienic conditions, our bearings are extremely corrosion resistant to H2O2 and PAA. At the end, the higher price is compensated by a longer life time of the bearing.