O-Rings provide excellent service in low power drive belt assemblies because they are inexpensive, easy to install, and the use of tensioning devices are not required.

When using o-rings as drive belts, certain design considerations should be observed such as maintaining between 8% to 12% stretch on the seal inside diameter. Also, the pulley grooves should be round and match the o-ring's cross section in depth and width while ensuring that the pulley diameter at the bottom of the groove is no less than 4 times the o-ring cross section.

Best Choices