SENQCIA Inspire Series roller links are manufactured in accordance with the ASME/ANSI B29.1 American Roller Chain Standard. They offer exceptional performance and long life in a wide variety of applications. These component parts possess solid bushings for improved wear life and are available to be installed in the field as needed. Two connecting links (sold separately) are required for field installation to repair damaged parts or lengthen existing strands. Note that this particular chain size is rollerless so that the link has a fixed bushing rather than a roller