Dynamo - Tungsten & Aluminum Spinning Top w/ Knurled Grip and Ceramic Bearing
Diameter: 1.25 inches
Height: 1.06 inches
Tungsten ring with two drill holes for balancing
Knurled Aluminum Spindle
Ceramic Si3N4 Bearing
Ships in 1-3 business days
Made in the USA
This Dynamo has a tungsten outer ring and a knurled aluminum spindle that houses a ceramic Si3N4 bearing. The top weighs in at 50 g. It has reported spin times over 20 minutes.
Due to the inherent issues with tungsten the top may have some flutter near the end of the spin even after being balanced.