expandable disc pulleys, wide range, easy installation, high reliability

Founded in 1967 by Dante Cavalli, under the name OMC, the company originally manufactured mechanical transmission components. In 2010 the company name was changed to ComInTec, to better reflect how the product range has developed over the years. The range now includes power transmission components, torque limiters, safety couplings, backlash free torque limiters, elastic couplings, disc couplings, backlash free couplings, variable speed pulleys, expanding pulleys, shaft collars and clamp collars. These components provide transmission connections, avoid accidental overloads, reduce machine stoppage times, increase productivity, and reduce maintenance and repair costs. Sold globally, the Comintec products are used in a wide variety of application and market sectors, and renowned for quality and reliability.


Variable Speed Pulley

Expandable disc pulleys giving a simple and economic solution for rapid and continous change of rotational speed of two shafts, without having to stop the tranmission.

  • Compact Model
  • With Mono-Expandable Discs
  • GalvanisedTreatment
  • Self-Lubricating
  • Maintenance Free

Linked Products
Bore Diameter11mm - 25mm
Outer Diameter75mm - 130mm
Width55mm - 80mm
Rated Power0.37kW - 1.5kW
Belt Width10mm - 17mm
Belt Thickness6mm - 11mm
Transmission Ratio2.0 to 2.4
Customised VersionsOn-Request
CatalogueVariable Speed Pulleys BrochurePDF 5.0MB
Dimensions2D & 3D Configurator

Technical Information

Product technical details and product downloads

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