Ball bearings is a device which consists of a ring of small metal balls
It reduces friction between the surfaces its rolling on
It works like
What are ball bearings?
Last updated at Sept. 5, 2019 by Teachoo
About the Author
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.