Different rollers are available on the market. What is the difference between nylon rollers and steel rollers?
Steel rollers have a built-in ball bearing system. The usual garage door industry standard is using 7 steel ball bearings for a steel roller. CEDO steel roller is made of a 10 steel ball bearing system, which provides a quieter operation of the garage door. Besides, for the quietest possible operation, you should select nylon rollers, especially if a bedroom is adjoining to your garage.