double row thrust ball bearing
double-direction thrust bearing 双向推力 ; 双向推力轴承 double row thrust ball bearing 双列推力球轴承 double row double-direction thrust bearing 双列双向推力轴承 ; 双列双向推力 ..
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短语
双列向心推力球轴承
row angular contact ball bearing
;
double row angular contact ball bearing
;
double-row angular contact ball bearing
单列双向推力球轴承
single row double-directino thrust ball bearing