Assertion: bearing | /r/CapableOf | use molded plastic cages
Facets:
Source sentences:
text: The cage for the balls is traditionally made of thin steel, but some bearings now use molded plastic cages, because they cost less to make and cause less friction.
text: The cage for the balls is traditionally made of thin steel, but some bearings now use molded plastic cages, because they cost less to make and cause less friction.