Flex Timing belts
Polyurethane Flex timing belts

Keiper PU Flex timing belts are extruded of abrasion-resistant polyurethane and high-strength steel cords, aramid cords or high flexible steel cords and VA steel with endless winded cords. In these belts the cords are helically spooled. These timing belts can be used for all kinds of power transmission applications because of their high power transfer, and their high flexibility make them suitable for synchronous transport and positioning applications. By using standard polyurethane and such other belt materials as polyurethane that is cold resistant, heat resistant or suitable for contact with foodstuffs a wide spectrum of applications is possible.


  • Standard steel
  • Special designs with aramid, high-flexible steel HF, reinforced steel L and stainless steel available upon request

Special designs

  • Double-sided toothing as of 1500mm length
  • Anti-static properties
  • Foodstuff-resistant PU compound
  • Polyamide fabric on tooth facing PAZ

Properties and special features

  • High tensile strength and stiffness
  • Helical-shaped arrangement of reinforcements for even distribution of tension
  • Form-fit, synchronous running
  • Low noise, high abrasive resistance and flexibility
  • Positional accuracy and isogonic
  • Different types of polymers are available
  • Large selection of coatings, profiles/cleats


  • Heavy load tasks
  • High power transfer
  • Foil machines
  • Textile industry
  • Conveyor systems
  • Wood and glass industries

Please see the PDF-file below for detailed information and technical data.


KEIPER PU Flex timing belts