发明名称 Spherical bearing and a manufacturing method thereof
摘要 By the contraction process in which the contraction die is made to displace a pair of inner spherical surfaces in the direction of approaching each other to deform plastically the outer race 1 in such a manner as the out race 1 is followed along the spherical surface 2a of the inner race 2. And the releasing process in which, by a releasing device comprising a plurality of rollers, the outer race is rotated while the peripheral surface 1b of the outer race 1 deformed plastically being pressed by a plurality of the rollers to release the internal stress of the outer race 1, the spherical bearing wholly made of titanium alloy is formed. Thus constituted, since a slide is generated between every ridge 6 of the outer race 1 and a pair of spherical surfaces, the outer race 1 is deformed plastically in such a manner as the outer race 1 is followed along the spherical surface 2a of the inner race 2, the spherical bearing wholly made of titanium alloy for industrial use can be formed.
申请公布号 US2002073547(A1) 申请公布日期 2002.06.20
申请号 US20010942867 申请日期 2001.08.31
申请人 MINEBEA CO., LTD. 发明人 SASAKI GEN;AKAO SHINICHI
分类号 B29C45/14;B29C45/16;B29C45/26;B29C45/56;B29C45/76;B29C45/82;F16C23/04;F16C33/12;F16C33/14;(IPC1-7):F16C33/30 主分类号 B29C45/14
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