Assertion: ball bearing's race | /r/HasProperty | inner
Facets:
Source sentences:
text: As the cross section diagram shows, a ball bearing consists of an outer race (top blue bar), an inner race (bottom blue bar) and balls (grey) that roll in grooves in the races.
text: Most commonly, ball bearings are constructed out of 5 parts – shield, inner race, balls (usually 7), retainer and outer race.