About: http://webisa.webdatacommons.org/440967737

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	The rolling contact surfaces of the disks where they engage the speed adjuster balls can have a flat, concave, convex or other profile, depending on the torque and efficiency requirements of the application.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au