procurement of spares for crd of travelling trippers of chp-iv, stps, sarni. procurement of spares for crd of travelling trippers of chp-iv, stps, sarni. , chain & sprocket complete set (2 nos. 1/2 “ pitch sprocket + 2 nos. 1 “ pitch sprocket + 1 nos. simplex chain 1/2 “ pitch + 1 nos. 1“ pitch) as per oem’s drawing no. tc/3191689 , cable guide roller assembly with z-z ball bearings as per oem’s drawing no. tc/3191689 , pendulum limit switch for crd as per oem’s drawing no. tc/3191689 , rotary geared limit switch for crd as per oem’s drawing no. tc/3191689 , slipring assembly complete with set of carbon brush fitted with holder as per oem’s drawing no. tc/3191689 , cable reeling drum as per oem’s drawing no. tc/3191689 , rail size – 52 kg/mtr with earth current collector assembly complete with cast iron shoe spring loaded bogie with fixing plate as per oem’s drawing no. tc/3191689