SENQCIA Inspire Series™ cottered type multi-strand oil field connecting links are manufactured in Japan in accordance with the ASME/ANSI B29.1 American roller chain standard and possess an API certification (License Number 7F-0025). They offer exceptional performance and long life in primarily oil field drive applications.
Long “oil field” type cotter pins are supplied with slip fit closing plates for ease of assembly in the field. Closing plates are “flat” style and the middle plates are bushed to provide the benefit of press fit with the ease of field assembly of a slip fit part . . . This design combines maximum fatigue strength with ease of assembly in the field. Connecting links are used to connect the ends of the oil field roller chain strand into an endless loop. Each connecting link is individually packaged in a sealed plastic bag.