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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 August 14, 2026 by Teachoo
Last updated at August 14, 2026 by Teachoo
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