About: http://webisa.webdatacommons.org/76222855

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	In practice, however, it is essential that some sort of bearing assembly be used to support the inevitable unbalanced attractive forces which result from small, unavoidable differences in the two air gaps.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com