Solid rollers made of tribologically optimised iglidur materials enable lubrication-free and maintenance-free guiding and deflection without ball bearings in the smallest installation space with simultaneous weight savings.
For this beverage bottling line, Krones AG was looking for wear-resistant rollers that would ensure a functioning system in the long term. The rollers used so far could not withstand the high cycle rates and the work in three-shift operation. "Earlier the rollers in particular wore out too quickly, so that the customer had to overhaul the clamping star wheel relatively frequently [...]. Here there was an urgent need for action. We have now eliminated this weakness. " Jürgen Steimmer, Group Manager Labelling Technology, Krones AG
Krones AG found the solution in igus plastic rollers. They consist of a plastic sleeve made of the material iglidur J, which was provided with an outer jacket made of TPU. The iglidur material is characterised above all by its wear resistance. The outer jacket provides good grip on the outer component so that the bearing is always carried along. Accordingly, only the plastic sleeve made of iglidur J wears out. The service life could almost be doubled with the iglidur rollers.
All iglidur materials consist of three components: base polymers, fibres and fillers, solid lubricants. As it is not possible for one universal material to fulfil all tasks equally well, there are different iglidur materials. Each has a different composition of the three components and a different application area.
The base polymers are responsible for the iglidur materials' wear resistance. They ensure that the lubricants are not subjected to a surface pressure that is too high.
These components strengthen the materials so that they withstand high forces or edge loads and can be used continuously.
They lubricate components made of iglidur materials independently and prevent friction. They are distributed in the entire material in the form of microscopic particles.
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