Chain belt and method of manufacturing the same

A method of manufacturing a chain belt including

• plurality of link plates each provided with a pin hole,
• plurality of connecting pins to connect a part of the plurality of link plates in an endless annular form by being inserted into the pin holes across the part of the plurality of link plates in a state where the part of plurality of link plates are overlapped in a thickness direction and shifted in a width direction, and
• a retainer pin welded to an end portion of the connecting pin and engaged with the link plate to prevent the link plate from coming off the connecting pin, wherein
• either one of the retainer pin and the connecting pin is provided with a linear groove in an axial direction, and
• the retainer pin is resistance-welded to the connecting pin along two open end edges on both sides of the linear groove in a state where the retainer pin is disposed so as to come into contact at two points on an outer circumferential surface separated from each other in a circumferential direction with an outer circumferential surface of the connecting pin via the two open end edges.