16PK1620/638K Poly-V Belt
Poly-V belts are a single, endless belt with longitudinal V-shaped ribs that mate perfectly with the V-grooves in the pulleys. It combines the convenience of a thin, one-piece flat belt with the strong gripping traction of multiple V-belts to make the Poly-V belt far better for many applications. To distribute the drive load evenly across the full width of the sheave, the Poly-V belt is built as a single unit with a completely supported, uninterrupted tension member. The thin-cross section profile allows the use of smaller pulleys than standard V-belts and Poly-V belts handle speed ratios of 40:1. With all this capacity, the Poly-V belt tracks properly without any special guides, flanges or deep grooves and resists seating in the grooves.
The approximate belt width is the number of ribs multiplied by 3.56mm
