... clients for continuous operation, increased bearing life and less power consumption. In order to offer quality Conveyor Pulleys, we use ... the shell. Further, the pulley shafts are made up of carbon steel machined with proper bore and key way. ... 400, 500, 630, 800, 1000 Main Customers:Petroleum, chemical, power, gas, metallurgy, shipbuilding.construction, coal tunneling of transportation conveyor drum