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


The Latest on our Blog

Right Angle Gearboxes Offer Efficient Power Transfer Design

Our right angle drives designed for a wide variety of power transmission and motion control applications where right angle motion is needed.  Typical uses of Torque Transmission’s right angle...Read more

Getting it Right the First Time: Custom Pulleys

A manufacturer of satellite and telecommunications equipment developed a television reception satellite dish for mounting atop recreational vehicles. The design requires a system of three uniquely...Read more

Nylon Pulley Reduces Cost, Improves Performance of Packaging Equipment

Seeking a lower cost alternative to anodized, machined aluminum pulleys for its high-speed PouchPlus® Inserter, Unique Solutions®, Inc, needed design and manufacturing assistance in...Read more

Nylon Timing Pulleys

The demands of the Motion Control market require light weight, durable components for greater accuracy and repetition. To meet the needs of this market, often the best solution is a nylon timing...Read more

Why Custom Torque Transmission Components Make Sense

For many manufacturers custom components, including mechanical drive components, just don't make much sense. Custom usually means special tooling, manufacturing, and processes and all of that adds...Read more

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