(Adding other products will affect these rates)
Nitro hex sprocket hub with a 9/16" bore is a premium quality, precision machined hub. All X series hubs are manufactured from 1020CD carbon steel and finished with black oxide for corrosion resistance. Our 9/16" hex weld on hub is compatible any of our X series weld on sprockets.
It's recommended to use Low Hydrogen Electrodes for welding sprockets and hubs together.