Question

why are ball bearings and molen graphite used
in machineries?​

Answer 1

Answer:

Graphite does lack the durability needed for bearings, but alloying it with a metal such as copper, Babbitt, bronze, or nickel improves its strength and durability. ... Graphite/metal alloy bearings handle mechanical stresses exceeding 1,000 psi and have a friction coefficient of about 0.15 to 0.3 on cold-rolled steel.