Super Oilite Bronze Round Tube Material Bronze Outside Diameter 3 7/8 in Inside Diameter 1.5 in Wall Thickness 3.875 in Overall Length 5 in Material Grade Super Oilite Mechanical Finish Mill Standards ASTM B-439 GR 4 FC-2000-K30 Reach RoHS SAE 863 Outside Diameter Tolerance +0.055 in/+0.071 in Fabrication Cast Yield Strength 22 000 psi Shape Round Tube System of Measurement Inch Application Conveyors Agricultural Off-Road Pulleys Sheaves Winches