Polycord, also referred to as urethane or polyurethane cord, is the standard material in producing polyurethane belts and O-rings. These Polyurethane O Rings most commonly known as O ring drive belts run conveyors in most of the manufacturing and distribution centers around the world. Polycord can be used to make these line shaft O-rings, roller-to-roller O-rings, divert O-rings onsite within the facility. Polycord comes in spools of various diameters (1/8”, 3/16”, 1/4”, 5/16”, and 3/8”), durometers (hardness of the polycord)  ranging from 80A-95A, textures (standard, orange, rough green, high tension, reinforced), and colors, which is then cut to the necessary length. Once the polycord is cut, it is heat welded or butt welded together. This is usually done in place without breaking apart the line shaft conveyor or they are made in house before disassembling the conveyor or removing the line shaft rollers. Below are the most common uses of each style of polycord on conveyors in distribution centers:

  • Standard: for most standard activities
  • Orange: for divert applications when transferring boxes between conveyors (85A)
  • Rough Green: for lightweight handling (88A, 90A)
  • High-Tension:  for heavyweight items. Comes is various colors (blue, red, green) based on maximum weight (88A)

There are many pros and cons to using polycord versus prewelded(endless) poly O-rings or polyurethane premade belts.

No tearing down machine  Downtime
Cheaper  Must purchase welding tool/kit
May be easier to apply  More manual labor
Ability to create new sizing yourself  Higher error potential

  Before placing your polycord order, you will need to know your durometer, diameter, cut length, texture, and color (usually clear).


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