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KL roller 2-component roller with ball bearing

KL roller 2-component roller with ball bearing

Manufacturing meth.

Injection moulding


PAS-PU H and PAS-80 GF


Manufacturers of escalators and moving walkways worldwide

Component description, application environment, function:

The roller is used in escalators and moving walkways as a chain roller or pallet roller. All of the loads which arise due to the intrinsic weight of the components and the weight of the passengers being conveyed are absorbed by the rollers. The escalators and moving walkways are used all around the world under a wide range of very different climatic conditions. This component can also be used in non-lubricated systems.

Design, choice of material, manufacturing technique

One of the requirements placed on the product is to provide a long service life under a wide range of conditions. Furthermore, the material is resistant to oil, grease, anti-corrosion agents etc. The rollers are made of PAS-PU H, a thermoplastic polyurethane. This material is characterized by excellent properties like resistance to hydrolysis, high abrasion resistance and resistance to microbes. The 2-component roller has a hub made of glass fibre reinforced polyamide in order to increase absorption of lateral forces. The polyamide is mounted in a positive-fit onto the grooved ball bearing and forms a strong bond with the polyurethane tire.

Special customer benefits:

  • Excellent ride comfort and very smooth and quiet operation
  • Long service life
  • Resistance to hydrolysis
  • Safe and reliable operation
  • Cost-effective design