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    Polyflex® Belts

    Developed by Gates and produced to patented manufacturing processes, these belts provide more load-carrying capacity at higher speeds to small multiple V-belt precision drives. This results in significant cost savings and improved design freedom.

    • High Modulus Polyurethane compound resists fatigue, wear, ozone and most environmental conditions. It also improves adhesion to the tensile cords.
    • Precise casting method eliminates layers and overlaps for smooth running and low vibration.
    • Ribbed backing provides greater lateral stability and relieves bending stress.
    • Unique 60° angle polyurethane construction results in better support of the tensile section that transmits a more even load distribution at higher speeds in less space than conventional v-belts.
    • Recommended for use on bench type milling machines, lathe drives, woodworking and metalworking machine spindle drives, computer peripheral equipment, small blowers, etc. Available on demand as matched sets.


    Polyflex® Belts were specially designed to transmit maximum power for a variety of small precision v-belt drive applications. The belt's ribs are designed to reduce bending stress on miniaturized drive components, while their 60° angle construction provides added support for even load distribution. This enable their use in high-performance, precision applications, accommodating shaft speeds in excess of 10,000 rpm.

    Features and Benefits

    • The 60° angle results in better support of the tensile section, and provides a more even load distribution.
    • Design freedom and space savings which are not possible with conventional rubber construction belts.
    • Ribbed backing provides greater lateral stability and relieves bending stress.
    • Polyurethane is extremely resistant to heat, chemicals and oil.
    • Low maintenance cost as belt needs less re-tensioning.
    • Improves adhesion to the tensile cords.
    • Long belt life on compact drives.


    Every Gates power transmission product is made at the leading edge of material science and manufacturing processes. Gates® Polyflex® Belts are precision cast, using our own proprietary process that forms the belt in a seamless, single layer. Their HDPE compound construction provides material properties that combine strength, flexibility, and high temperature tolerance. The result is a precision application belt that provides exceptional load-carrying capacity, application versatility, and durability.