procurement of spares for various gearboxes new allenberry make installed at 1x500 mw chp at sgtps mppgcl birsinghpur - spare for helimax double stage helical gearbox of type & size csb-315 with ratio 20:1, bearing ref. no. bj 87 input pinion shaft part no 100 with key 1 stage gear part no 302 2nd stage pinion shaft part no 300 with key 2nd stage gear part no 202 spares for helimax double stage helical gearbox of type & size csb-280 with ratio 20:1, bearing ref. no. bj 86 input pinion shaft part no 100 with key 1 stage gear part no 302 2nd stage pinion shaft part no 300 with key 2nd stage gear part no 202 spares for helimax double stage helical gearbox of type & size csb-250 with ratio 20:1, bearing ref. no. bj 89/1 2nd stage pinion shaft part no 300 with key 2nd stage gear part no 202 spare for helimax triple stage bevel helical gearbox of type & size ckc-225 with ratio 20:1, bearing ref. no. bj 92/1 2nd stage pinion shaft part no 400 with key 2nd stage gear part no 302 3rd stage gear part no 202 spare for helimax triple stage helical gearbox of type & size csc-160 with ratio 28:1, bearing ref. no. bj 95/4 input pinion shaft part no 100 with key 1 stage gear part no 402 2nd stage pinion shaft part no 400 with key 2nd stage gear part no 302