Poly V Pulleys: More ribs equals more power

Poly V Pulley Profile for "J" Belts
Poly V Pulley Profile for "J" Belts

Customer will define the belt width (number of ribs) and pulley diameter.

Standard Tolerances for Bore Sizes, Keyways and Setscrews


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Multi-Rib belts, like the Poly V® and Multi V®, feature lengthwise groove and provide superb drive by adhesion. Compared with conventional belts of the same width, Multi-Rib belts optimize the contact area, giving you increased power transfer. A thin cross section profile allows for use with smaller pulleys than standard V-belts.

Drive widths can be reduced because there is increased surface engagement allowing for increased horsepower per inch of belt width compared to standard V-belts. Even in specialty applications, this belt and pulley combination operates quietly and with minimal vibration.

  • Precise Power Per Rib - power can range from a few hundredths of a horsepower up to 1.7 hp per rib
  • More ribs mean more power - increased horsepower per inch of belt width compared to standard V-belts
  • Pulley size puts precision in the power
  • Drives with 4, 6 or 10 ribs - popular industry standards
  • Several belts can ride on a single custom sized pulley
  • New belt designs improve performance on partial turns - as small as 1/4 or 1/8 rotation
  • Made in USA
Poly V & Micro V Multi-Ribbed Pulley Applications:
  • Mobility lifts
  • Agricultural mechanization
  • Exercise equipment
  • Custom applications
  • Medical equipment
  • Automation
  • High-speed machine tools
  • Polishers
  • Fans
  • Dryers
  • Pumps
  • Mixers
  • Dispensers
  • Atomizers
  • Compressors
  • Microwave ovens
  • Office equipment
  • Display components
  • Chair lifts and more

Contact us with your specific Poly V & Multi V Pulley requirements for an individual evaluation

Poly V® is a registered trademark of Goodyear Tire & Rubber Company
Micro V® is a registered trademark of Gates Rubber Company


Nylon vs. Metal Pulleys

Downlload the Multi-Ribbed Pulley Purchasing Checklist