Method of injection molding a sealing member for a

专利名称：Method of injection molding a sealing

member for a fluid dynamic bearing

发明人：Kouyou Suzuki,Hiroshi Niwa,Fuminori

Satoji,Kimihiko Bito,Yoshiharu Inazuka

申请号：US14168108申请日：20140130公开号：US09512878B2公开日：20161206

专利附图：

摘要：A weld line formed by injection molding of a sealing member is formed at acircumferential position out of deepest portions of axial grooves, which form thinned

portions of the sealing member (optimally, in a region of a cylindrical surface betweenthe axial grooves in a circumferential direction). Thus, the sealing member is preventedfrom being provided with parts having locally markedly low strength, and hence damageto be caused by press-fitting is prevented.

申请人：NTN CORPORATION

地址：Osaka-shi, Osaka JP

国籍：JP

代理机构：Westerman, Hattori, Daniels & Adrian, LLP

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