About
8 Nominal (clean up) diameter, 8″ dia. x .50″ wall aluminum 6061-T6 material, Journal material 1018 carbon steel with diameters up to 1-7/8, 32 Ra surface finish on roll face, Dynamically balanced up to 2000 FPM, or your specified web speed, Runout to bearing journals within .004, Straightness across face within .0005″/ft. of length,