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https://katalog.bibliothek.kit.edu/bib/740198 Details for: The influence of the circulation of the balls in an unlubricated angular contact... OPAC der KIT-Bibliothek for the https://patents.google.com/patent/CN105443657B/en CN105443657B - Unlubricated friction scraping-piece type torsional vibration damper - Google Patents This patent discloses a kind of unlubricated friction scraping-piece type torsional vibration damper, including bent axle and belt wheel, bent axle is provided... torsional vibration damperfrictionscrapingpiece https://open.library.ubc.ca/soa/cIRcle/collections/ubctheses/831/items/1.0106076 Frictional transition effects in unlubricated sliding - UBC Library Open Collections Learning, knowledge, research, insight: welcome to the world of UBC Library, the second-largest academic research library in Canada. transition effectslibrary openslidingubccollections