procurement of spare parts of wagon tipplers of chp-iv, stps, sarni. procurement of spare parts of wagon tipplers of chp-iv, stps, sarni. , drive rack segment (300 mm wide) , one set of special fastener for drive rack segment (42 nos. fitted bolt & 84 nos. hss bolt with nut & washer) , plummer block with covers for drive pinion , latching arrangement with frame for drive gear assembly , complete drive pinion set for wagon tipplers , pivot roller for platform assembly , pivot roller pin for platform assembly , pivot roller bush for platform assembly , support roller for platform assembly , support roller pin for platform assembly , support roller bush for platform assembly , set of cup & cone for platform seating beam assembly , cylinder rod end pin with bush and end caps , clamp beam pivot pin with bush and end caps , clamp arm pivot pin (on clamp bracket) with bush and end caps , bearing housing assembly without bearing , main pivot shaft , main pivot bearing , ring feeder for main pivot , sprockets for rotary gear cam switch , chain for rotary gear cam switch