supply of spares for scrapper feeders and clinker grinders of bah unit iii and iv-1 submerged wheel assembly with hub for bah-iv as per drawings 1 to 5 ( sample kept at site ) material: wheel – cast steel c55 mn75, key- en8 2 drive pinion for clinker grinders of bah-iv ( as per drawings no.6 ( sample kept at site ) ) material: cast steel, tooth profile to suit simplex chain 11 / 2’’ x 1’’ ( r3825 ) 3 driven sprocket for clinker grinders of bah-iv ( as per drawings no.7 ( sample kept at site ) ) material: cast steel, tooth profile to suit simplex chain 11 / 2’’ x 1’’ ( r3825 ) 4 spur gear wheel for clinker grinders of bah – iii&iv ( as per drawings no.8 ( sample kept at site ) ) ( 2 nos. gear wheel with 2 keys / set ) material: cast steel ( is 1030 ) 5 apron plate for clinker grinders of bah-i to iv ( as per drawings no.9 ( sample kept at site ) ) material: ni-hard gr-iv 6 renold / rolon brand simplex chain for clinker grinder ( r 3825 ) bah iv ( in 3.5m length along with connector pin 6 nos. ) 7 scrapper chain ( 29links ) for bah-iv ( as per drawings no.10 ) material: ni cr moly steel 8 ‘u’ links ( connectors ) with 2 nos. ht nuts ( m20 ) , 2nos. spring washer and 1 no. plate washer for bah-iv. drawing no.11, material: c45 for ‘u’ link, washer plate: ms 9 ‘u’ links ( connector ) with 2 nos. ht nuts ( m16 ) , ht lock nut ( m16 ) 2 nos., 2nos. spring washer and 1 no. washer plate for bah-iii. drawing no.12, material: c45 for ‘u’ link, washer plate: ms