Hand Fine Spur Gear
(Polar Part # 218629)
Machines: Some of the early Polar EL and Polar CE paper cutters.
Size: It's outside diameter measures 4.97" (126mm). Its overall width is approximately 1.57" (40mm). It has a 19mm diameter bore (.75"), and a 6 mm wide keyway.
This 22 tooth gear is used in the hand fine adjustment mechanism.