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    POLY CHAIN®:
    THE MOST ADVANCED BELT IN THE WORLD

    Quiet, lightweight, and clean-running, the hard-wearing Gates® Poly Chain family is renowned for its extraordinary strength and load-carrying capacity. Incorporating either aramid or Gates patented carbon fiber tensile cords for minimal stretch, Poly Chain belts have a curvilinear tooth profile that increases shear strength. A nonslip nylon tooth facing reduces friction and eliminates the need for lubrication.

     

    EXPLORE POLY CHAIN BELT TECHNOLOGY

    POLY CHAIN GT™ CARBON™ 

    Designed to handle longer center distances at high load-carrying capacities, Gates Poly Chain GT Carbon synchronous belts deliver outstanding performance and excellent savings across a range of applications. Carbon fiber tensile cords provide increased horsepower and compactness. The durable polyurethane construction resists chemicals, oil, and abrasion for a long-lasting, maintenance-free system. 

     

    POLY CHAIN GT CARBON BELTS 

    POWERGRIP™ GT™4

    The latest in industrial rubber synchronous technology from Gates, PowerGrip GT4 is the ethylene elastomer high-torque belt that drives the highest power-carrying capacity of any belt in its class. It elevates efficiency in narrower drives. And with no lubrication or re-tensioning necessary, there’s no need for maintenance — improving your uptime and productivity. 

     

    POWERGRIP GT4 BELTS

    POWERGRIP GT™2 TWIN POWER™

    Gates PowerGrip GT2 Twin Power belts are double-sided, transmitting 100% of the maximum rated load from either side, and enabling synchronisation from both drive surfaces. The large tooth profile increases performance capacity, handles high speeds, and withstands extreme temperatures from -22°F to 212°F (-30°C to 100°C).

     

    POWERGRIP GT2 TWIN POWER BELTS 

    CONNECT WITH OUR EXPERTS

    Learn how the revolutionary Gates synchronous belt drive system can benefit you. If you have an application in mind, a challenge to solve, or simply a question to ask, our team is ready to help now.

     

    TALK WITH AN EXPERT

    STAY AHEAD WITH OUR SYNCRONOUS BELT RANGE

    UNCHAIN YOUR POTENTIAL WITH GATES HIGH-PERFORMANCE SYNCHRONOUS BELTS

    Watch a 3/4 inch belt lift an 8,800lb skid steer. Gates + materials science + process engineering = innovative solutions, even in the most demanding conditions.

    INDUSTRIAL SYNCHRONOUS BELTS APPLICATIONS

    An industrial machine filling empty plastic bottles with green caps.

    FOOD & BEVERAGE

     

    Powerful yet lightweight, Gates synchronous belt solutions are engineered to reduce maintenance, decrease contamination risk, and improve performance. Our rust-free, non-stretch PowerGrip GT4 is the only synchronous belt made of ethylene elastomer with a temperature tolerance of up to 284°F (140°C) during intermittent use.

    Three industrial cooling fans mounted on an exterior wall, for ventilation and temperature control in commercial buildings.

    HVAC 

     

    The efficiency and reliability of Gates synchronous belts will make a positive difference to your operating environment. Our heating, ventilation, and air conditioning (HVAC) solutions minimize downtime, lower energy consumption, and reduce maintenance costs. 

    Large rolls of paper in a manufacturing facility, with overhead yellow cranes used for handling and transporting materials.

    PULP & PAPER

     

    Gates PowerGrip GT4 delivers the highest power-carrying capacity of any belt in its class and is the optimum choice for high-performance drives in the pulp and paper industry, where durability and low maintenance are essential. Not only does it deliver the highest power-carrying capacity of any belt in its class but also handles intermittent use at extreme temperatures from -40°F to 284°F (-40°C to 140°C).

    Red forestry machine with a grapple arm lifting logs in a snowy, forested area, surrounded by cut timber and tall pine trees.

    FORESTRY & LUMBER

     

    Unlike roller chain, Gates Poly Chain belts need no maintenance, re-tensioning, or lubrication. Durable and incredibly strong, they’re ideal for forestry and sawmill applications such as debarkers, saws, conveyors, planers, and stackers. The nonslip design maintains speed and saves energy, and Poly Chain withstands wide-ranging temperatures.

    Power wash a tractor- Agriculture

    AGRICULTURE

     

    Designed for demanding drives, Gates synchronous belts for agriculture deliver superior performance in heavy conditions and harsh environments. They can handle exposure to dust, dirt, and stones, as well as additional load caused by small tensioners. With Gates, you can dependably power your farm equipment through every season.

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    An industrial machine filling empty plastic bottles with green caps.

    FOOD & BEVERAGE

     

    Powerful yet lightweight, Gates synchronous belt solutions are engineered to reduce maintenance, decrease contamination risk, and improve performance. Our rust-free, non-stretch PowerGrip GT4 is the only synchronous belt made of ethylene elastomer with a temperature tolerance of up to 284°F (140°C) during intermittent use.

    Three industrial cooling fans mounted on an exterior wall, for ventilation and temperature control in commercial buildings.

    HVAC 

     

    The efficiency and reliability of Gates synchronous belts will make a positive difference to your operating environment. Our heating, ventilation, and air conditioning (HVAC) solutions minimize downtime, lower energy consumption, and reduce maintenance costs. 

    Large rolls of paper in a manufacturing facility, with overhead yellow cranes used for handling and transporting materials.

    PULP & PAPER

     

    Gates PowerGrip GT4 delivers the highest power-carrying capacity of any belt in its class and is the optimum choice for high-performance drives in the pulp and paper industry, where durability and low maintenance are essential. Not only does it deliver the highest power-carrying capacity of any belt in its class but also handles intermittent use at extreme temperatures from -40°F to 284°F (-40°C to 140°C).

    Red forestry machine with a grapple arm lifting logs in a snowy, forested area, surrounded by cut timber and tall pine trees.

    FORESTRY & LUMBER

     

    Unlike roller chain, Gates Poly Chain belts need no maintenance, re-tensioning, or lubrication. Durable and incredibly strong, they’re ideal for forestry and sawmill applications such as debarkers, saws, conveyors, planers, and stackers. The nonslip design maintains speed and saves energy, and Poly Chain withstands wide-ranging temperatures.

    Power wash a tractor- Agriculture

    AGRICULTURE

     

    Designed for demanding drives, Gates synchronous belts for agriculture deliver superior performance in heavy conditions and harsh environments. They can handle exposure to dust, dirt, and stones, as well as additional load caused by small tensioners. With Gates, you can dependably power your farm equipment through every season.

    THE BEST CHOICE FOR INDUSTRIAL AND OFF-HIGHWAY

    Gates synchronous belt drive solutions are moving industry forward. See how we can help your business get ahead — and stay ahead.

    FEATURED RESOURCES

    Design Power™ for customized power transmission drive designs.

    DESIGN POWER™ 

    Available for desktop and mobile, Gates Design Power equips you with free access to our digital innovation toolkit, including Design Flex Pro™, so you can engineer and optimize the next generation of belt drive systems.

    DESIGN POWER
    Two power transmission belts in black made of rubber.

    CHAIN TO BELT SOLUTIONS

    Say goodbye to roller chain and say hello to the next generation of power transmission. Discover how the superior performance of Gates belt solutions can help you level up the potential of your business. With our energy-and cost-savings calculators, you can quickly see how to maximize efficiency and reduce your operational costs.

    CHAIN TO BELT
    Close-up of Gates belt tensioner with pulley wheels and a drive belt.

    POWERGRIP TENSION CALCULATOR

    Improve your PowerGrip belt system efficiency with this quick and easy online tool. Calculate your Gates belt drive tension to determine the proper force, center and deflection distances, and more.

    POWERGRIP TENSION CALCULATOR

    FREQUENTLY ASKED QUESTIONS

    Expand All / Collapse All

    Energy efficiency is a top priority for facilities aiming to reduce operational costs and meet sustainability goals. Synchronous belt drives typically offer an efficiency of 98% to 99%. Because synchronous belts do not slip, they maintain constant speed and torque, potentially reducing energy waste for large-scale motor applications.

    The integration of carbon fiber tensile cords in belts like Poly Chain® GT™ Carbon™ is a major trend in high-performance synchronous belts. Carbon fiber provides extreme power density and high resistance to stretching. This allows for narrower belt designs that can handle the same load as wider and heavier traditional rubber belts or roller chains, enabling more compact and lightweight drive systems.

    Yes. For industries in the USA dealing with grain handling and chemicals, static electricity is a major concern. High-quality synchronous belts, like Poly Chain® Carbon™ Volt™  are often designed to meet the ISO 9563 standard for static conductivity. These belts dissipate static charges to the pulleys and ground, preventing sparks that could trigger explosions in hazardous environments.

    Modern synchronous belts like Powergrip™ GT4™ use advanced polymers, such as ethylene elastomers, which provide superior resistance to chemicals, oil, and heat. These materials allow the belts to operate reliably in harsh industrial settings where traditional rubber belts might degrade quickly, ensuring a longer service life and fewer unplanned shutdowns.

    Curvilinear profiles distribute stress more evenly across the belt tooth, allowing for higher load capacity, reduced noise, and a lower risk of "tooth jump" or shearing under heavy loads.

    Noise pollution is a significant workplace safety concern. Synchronous belts are significantly quieter than roller chains, which generate metal-on-metal noise. Advanced tooth designs and materials further dampen vibration, making them ideal for high-speed applications.

    Yes, double-sided synchronous belts, like Gates Powergrip™ GT™ Twin Power™, are used in industrial machinery to transmit power from both sides of the belt. This allows for complex, multi-point drive configurations where pulleys may need to rotate in opposite directions, all while maintaining synchronous precision.

    Absolutely. Many synchronous belts like Synchro-Power™ and Poly Chain® GT™ Carbon™ are designed with non-porous materials that do not absorb moisture or harbor bacteria. When paired with stainless steel sprockets, these drives are ideal for the USDA and FDA-regulated wash-down environments found in the US food and beverage industry.

    Contact our team of industry experts and application engineers to learn more about Gates industrial synchronous belts today.