Assertion: ball bearing's ball | /r/CapableOf | make contact
Facets:
value: at one point
type: TEMPORAL
value: with the nut
type: OTHER
Source sentences:
text: To obtain proper rolling action of the balls, as in a standard ball bearing, it is necessary that, when loaded in one direction, the ball makes contact at one point with the nut, and one point with the screw.