rfq-9308-doc-bearings-conc procurement of bearings thru cppp , procurement of bearings for conc. plant , taper roller bearingskf-6580 / 6535 ( equivalent, any make ) , bearing cylindrical roller bearing 22213 ( equivalent, any make ) , plumber block with pollard bearing mp-40.mm ( equivalent, any make ) , plumber block with pollard bearing mp-50.mm ( equivalent, any make ) , single row radial ball bearing as per is-no 6455-1972 , skf- 6213 / nbc165 / sbl-213k ( equivalent, any make ) , ball bearing double row self aligningskf-1215k ( equivalent, any make ) , single row radial ball deep groove  no 6308 as per is standard, inside diameter -40mm, outside diameter-90mm & width-23mm ( any make ) , plumber block with pollard bearing mp-100.mm ( equivalent, any make )