Assertion: treadmill's roller | /r/CapableOf | push the belt
Facets:
value: back to its center
type: OTHER
value: automatically
type: MANNER
Source sentences:
text: Given that the forces of the belt being pulled naturally will gravitate toward the center and combined with the crowned rollers that automatically push the belt back to its center, adjusting the belt is far less common on a treadmill with crowned rollers.