Compact and strong for more power

This compact and strong belt with a nominal upper width of 3 to 11 mm transmits more power and allows for high speed ratios. Polyflex® is suitable for belt pulleys with an extremely small diameter and for particularly compact drives with high speeds. Ideal for use in machines and machine tools which require high power and smooth operation in the tightest of spaces.

Highlights

  • Freedom of choice with regard to design and space-saving measures.
  • Low maintenance costs, because the belt needs to be re-tensioned less often
  • Long service life for compact drives

Design

The high modulus, newly designed polyurethane compound is superior to conventional belt materials and offers high fatigue and wear resistance as well as a high coefficient of friction. It also improves adhesion to the tensile cords. Polyurethane is extremely resistant to heat, chemicals and oil. Homogeneity within the entire Polyflex® belt is guaranteed because the polyurethane compound is not layered but cast without overlap - for smoother running and less vibration. The ribbed upper surface reduces the bending stress on small-diameter pulleys and provides good lateral stiffness. The 60° angle provides better support for the tension cords and ensures a more even load distribution.

Temperature range:

  • -54 to +85 °C

Profiles and dimensions

ProfileWidth
(mm)
Height
(mm)
Length range
(Reference length – mm)
3M32.28180 - 750
5M53.30280 - 1,850
7M75.33500 - 2.300
11M116.85710 - 2.300

Application area

  • Bench milling machines
  • Lathe drives
  • Spindle drives for wood and metal working machines
  • Computer peripherals
  • Small blowers
  • etc.
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