Assertion: bearing's ball | /r/HasAspect | a surface finish
Facets:
value: typically
type: DEGREE
Source sentences:
text: Ceramic and ceramic coated balls typically have a surface finish that is 5 times finer than stainless steel balls, so wear of the races and cages are significantly reduced, and bearing lifetime typically increases (with lubrication) up to 5-10 times longer than an all-stainless bearing.