The Black+Decker 2684 Sawcat is a corded circular saw featuring a 7.25-inch blade diameter and a 13-amp motor with a maximum of 5800 RPM, designed for various cutting tasks in workshops or construction sites.
Circular saws with the motor perpendicular to the blade are direct drive - IE, the blade is attached to the motor shaft. There are no gears. apparently, there are units that have the motor behind the blade, but I have never seen one. Those have a worm drive.