This is a replacement for the minute wheel used on all styles of the Sunbeam electric clock movements. See my article on repairing these movements at the link below.
http://www.dasarodesigns.com/projects/repairing-vintage-sunbeam-electric-clock-movements/
Note: Unfortunately, despite my best efforts, the pinion on the new minute wheels appears to be more easily stripped then the original. I have seen them fail in clocks which run hot and require high torque on the hour hand. I recommend replacing this part only if absolutely necessary and take no responsibility if the replacement fails in short order.