Ball bearing

Leonardo da Vinci made and used something called a ball bearing and it makes something be able to turn without friction so like a wheel has bearings or the top part of a tank that spins 360 degrees. Leonardo used these bearings for many of his inventions. Also ball bearings stop friction so for example a figit spinner it spins so well and for so long because of ball bearings.

Associated Place(s)

Event date:

circa. 1497

Parent Chronology: