Polyurethane O rings are the industry standard for most motor pulley to shaft applications. They are used to drive machines and operate them in many different applications including; Line shaft conveyors, robotics, engravers, roller to roller conveyors, pop up diverters, sorters, Laundry machines, Distribution Center conveyors and transfers, Tire manufacturing, printing machines, and countless other industries all use polyurethane o rings.
Please call for free samples or with any questions you may have.
There are two ways to get a properly fitting o ring if you do not know what size you need.
Method one would be to measure an unused o ring that goes on your application
It is important to measure an unused o ring because of the stretch factor. If the measurement was taken off an old stretched out o ring this could result in a loose-fitting o ring. A loose-fitting o ring will not provide the tension needed to run the machine properly or could work for a short while, giving you a much shorter lifespan.
What to do if you do not have an unused o ring for an application?
The answer is simple use method two-the tapeline measurement method.
Method two is getting the tape line measurement and multiplying it by .90. This will give you the cut length that you need. To get the tape line measurement, measure where the o ring will run. A soft tape measure or a piece of string can be used. Be sure to make a complete circle and mark your string where the circle is complete. The piece of string is then measured against a ruler to give the measurement.
Method two (Line Shaft Conveyor Example):
Polyurethane belts or o-ring belts are ordered using the following specs:
Superior Bands is a supplier for polyurethane O-rings throughout the United States and the world. Regardless of the application for your o ring, give us a call and we can work with you to get the proper size. We offer samples and onsite visits to help get your machines up and running.