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Poly Chain® GT® Carbon™ Belt Out with the Mess, Downtime and Expense

Supplier: Gates Australia

Gates Poly Chain® GT® Carbon™ belt features carbon fiber tensile cords that provide high strength and length stability, while reducing stretch on drive systems used in high-torque applications.


Polyurethane synchronous belt with carbon fibre cords.

Poly Chain® GT® Carbon™, Gates most powerful synchronous belt, has been designed for optimum performance on high torque, low and high speed drives in any industrial application. This lightweight belt features increased power ratings of up to 30% higher than previous constructions, while maintaining the same long service life.

Poly Chain® GT® Carbon™ belt construction is based on innovative state-of-the-art design. The body and teeth of the belt are made of a unique polyurethane compound, making the belt tough and virtually immune to abrasion and chemical attack.

Poly Chain® GT® Carbon™ belts make an excellent alternative to roller chains, requiring neither re-tensioning nor lubrication. Space-saving, weight-saving and money-saving, Poly Chain® GT® CarbonTM drives offer a long and reliable service life.

The result is a belt drive system with power capacities that surpass those of standard roller chain drives in equivalent widths and pitch sizes. All this with a belt tough enough to take all the stop, start, shock loading, back bending and backlash you can dish out!

Why carbon?

In today's high-performance driven world, parts that need to be incredibly strong and lightweight aren't made of steel. They're made of premium grade carbon fibre.

Gates is the first to apply these premium grade carbon fibres in a patented dynamic application, providing our Poly Chain® GT® Carbon™ belts with exceptionally high power transmission capability, strength, flexibility and durability.

The evolution of Poly Chain® GT® Carbon™ is a result of many years of product research and development coupled with extensive field testing, to birth the ultimate power transmission drive system and the ideal replacement for power transmission roller chain.

Carbon cord belt attributes

Key attributes:

  • Higher modulus:  pitch fit stays constant at various loads.
  • Dimensional stability: Under strain ~ negligible elongation
  • Environmental resistance: Not subject to decay from harsh environment (water, oil, most contaminants)
  • Flex fatigue: Better flex fatigue resistance than steel, glass and Aramid fibers
  • Fit: designed for maximum performance with genuine Gates Poly Chain® GT sprockets

For overall cost reduction, choose belts over roller chain

A synchronous belt drive system has many cost-saving advantages for plant maintenance managers and design engineers. In the MRO market, synchronous belt drives can greatly reduce day-to-day operational costs. They can also increase production output compared to the downtime and lost productivity resulting from all-too-frequent maintenance and replacement of roller chain and V-belt drives.

Drive system design engineers who utilise Gates Poly Chain® GT® Carbon™ synchronous belt drive systems will have a competitive edge in the marketplace. They'll be able to provide end-user customers with better-per-forming, longer-lasting, cleaner, quieter and maintenance-free products that operate at a significantly lower overall cost.

If you thought roller chain was your only drive option, think again. Now there's the Gates Poly Chain® GT® Carbon™ belt, part of a powerful genuine Gates synchronous belt drive system that outperforms roller chain in even the most demanding high- torque applications.

The ideal roller chain alternative

  • Maintenance-free drive
  • Requires no lubrication
  • No stretch
  • 5% energy savings over V-belts
  • Outlasts roller chain up to 4-to-1
  • Sprockets outlast roller chain sprockets 10-to-1
  • Drive can be washed down
  • Inside and backside idlers can be used
  • Compact drive components provide versatility to drive designers – over 120,000 possible drive combinations

Why choose Poly Chain over roller chain?  
The body and teeth of Poly Chain® GT® Carbon™ belts are made of a durable polyurethane compound specially blended for uncompromising adhesion to the tensile cords, and the teeth are reinforced with a heavy wear-resistant nylon fabric known as carbon blue. This allows for exceptional tooth shear strength and excellent flex life. The Poly Chain® GT® Carbon™belt has better flex fatigue resistance than steel, glass and Aramid fibers.

The Poly Chain® GT® Carbon™ belt's  strength lies in its carbon fibre tensile cord member that runs through the middle of it. It performs flawlessly under the harshest operating conditions; The Poly Chain® GT® Carbon™ belt is not subject to decay from harsh environment (water, oil, most contaminants).

The cords provide high impact strength to handle shock and surge loading. It's the strongest, toughest belt the market has ever experienced! And with no metal-to metal contact between belt and sprockets, sprocket life increases over roller chain sprockets by an even higher ratio 10-to-1 or more. 

*A risk free conversion that will pay for itself in less than a year 
This statement is based on an average. Some pay back a lot quicker.
Visit to use our savings calculator and find out how much you can save by switching.

Don't settle for old technology

For more information about the many performance advantages of Poly Chain® GT® Carbon™ belt drive systems, contact your local Gates representative. Gates offers the largest, most experienced power transmission distribution worldwide.Find out more at