The product images shown are Illustrative only and may not be an exact representation of the product.

Polyflex® Belts

Gates Polyflex® Belts provide a versatile power transmission solution when space is at a premium. Their unique 60° angle polyurethane construction transmits greater loads at higher speeds in less space than conventional V-belts. This compact and strong belt with nominal top width from 3 mm to 11 mm transmits more power and allows high speed ratios. Polyflex® is suited for extremely small diameter pulleys and very compact drives with high rotational speeds. Ideal for use on machines and machine tools requiring high performance and smooth operation in limited space such as bench type milling machines, lathe drives, woodworking and metalworking machine spindle drives, computer peripheral equipment, small blowers, etc.

  • High Modulus Polyurethane compound (HMPE) resists fatigue, wear, ozone, and most environmental conditions.
  • Precision casting eliminates layers and overlaps to enable low vibration operation.
  • Temperature Range: -65°F up to 185°F (-54°C up to 85°C).

All Parts

1-10 of 218 Items
Part # Product # Description Effective Length (mm) Section
11M1000 89041000 11M1000 POLYFLEX 1000 11M
11M1030 89041030 11M1030 POLYFLEX 1030 11M
11M1060 89041060 11M1060 POLYFLEX 1060 11M
11M1090 89041090 11M1090 POLYFLEX 1090 11M
11M1120 89041120 11M1120 POLYFLEX 1120 11M
11M1150 89041150 11M1150 POLYFLEX 1150 11M
11M1180 89041180 11M1180 POLYFLEX 1180 11M
11M1220 89041220 11M1220 POLYFLEX 1220 11M
11M1250 89041250 11M1250 POLYFLEX 1250 11M
11M1280 89041280 11M1280 POLYFLEX 1280 11M
1-10 of 218 Items


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.