| http://www.w3.org/ns/prov#value | - For the purpose of cost saving, bearing device having an outer diameter part made of a resin, such as disclosed in Japanese Patent Application Laid-Open No. 2005-114162 (patent document 1), have been proposed recently.Patent Document 1: Japanese Patent Application Laid-Open No. 2005-114164DISCLOSURE OF THE INVENTIONProblem to be Solved by the InventionWith rapidly falling prices of information dev
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