Question

the device which is used to reduce friction in the axless of cars and shafts of electric motors ​

Answer 1

Explanation:

$\huge{\underline{\blue{\mathrm{Ball- bearings}}}}$

bearings is used to reduce friction in the axles of cars and shafts of electric motors .

Answer 2

Ball-Bearings is the device commonly used to reduce friction in the axles of of cars and shallots of electric motor