Polycord, also referred to as urethane or polyurethane cord, is the standard material in producing polyurethane belts and O-rings. It can be used to make line shaft O-rings, roller-to-roller O-rings, divert O-rings, and much more.
Polycord comes in spools of various diameters (1/8”, 3/16”, 1/4”, 5/16”, and 3/8”), durometers ranging from 80A-95A, textures (standard, orange, rough green, high tension, reinforced), and colors, which is then cut to the necessary length.
See below for common uses of each texture:
There are many pros and cons to using polycord versus prewelded(endless) poly O-rings.
|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).