... bearingsDouble direction thrust ball bearings5 Application areas:mine machine, port hoisting machine, port oil transfer equipment, onshore and offshore crane ... ; excavator, concrete machine, paper machine, plastic and rubber machine, weave machine, steel plant, electronic power plant, wind ... 51196 51396 511/500 512/500 593/500 511/530 590/560 591/600 512/630 510/670 511 ...