About: http://webisa.webdatacommons.org/83881441

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	RCF failures are caused by damage to the bearing material that accumulates over time ??? at well-understood rates ??? and differ according to the bearing steel alloy type, heat treatment, cleanliness, surface finish and other factors.
http://www.w3.org/ns/prov#wasQuotedFrom	nawindpower.com